Hi David. Thank you for this experiment! When I first started out I didn’t know that canvas panels might not be a good option. But I think I did use artist loft and it was kind of a crapshoot. sometimes they would bow and sometimes not. But I quickly moved on to stretch canvases because even though those are more expensive you’re wasting paint or I was wasting paint (& time) by using the canvas panels and just hoping that it would work out. In any regard you are my favorite teacher on the tube! A lot of the other artists, 90% of their videos are simply showing them doing a pour. They typically don’t explain the mechanics of it or even go farther and do experiments like this!
JUST had this happen today and didn’t know why. Thank you so much! This was my first time to practice acrylic pouring, and I didn’t know what I’d done wrong
That's a great experiment - I love that you actually dissected the boards. I've been using the panels that I bought to practice when I began pouring, as my drip test diary. (5X7, a five pack for $2.50, was no bargain if I can't use them.) Nice to know that I can actually USE them for painting! Thank you so much.
THANK YOU THANK YOU! This was a very important lesson I have been glue/ painting the backs of my canvas panels to prevent warping and some still did but I didn’t relize a lot of the issue was the QUALITY of the boards.. that and the point you made about square vs rectangular boards.. this was a great video for beginning pour artists. You are a life saver! My wallet also thanks you!
This is an excellent subject to cover and you're just so thorough. When I was just doing regular acrylic painting I always used canvas boards from Michael's because I could easily fit them into a regular frame. Here's why I especially love this content: when I first started pouring, I fell into the hobby lobby trap. I bought a bunch of the canvases supposedly made just for pouring. It didn't occur to me that they'd sell something so counter intuitive and disastrously useless. The canvas is supported with cheap cardboard! The second that gets wet it buckles and your pour is ruined. I was horrifed, even moreso when I tried to return $60 worth of them explaining to the manager what was wrong with them and she refused. FYI their canvas panels are the same cheap quality. I lost my receipt but I shopped there all the time so I asked for a store credit. Again she refused! I'm stuck with them and trying to figure out how to salvage them. Sorry this is such a long comment but I think its important for people to know about this stuff, yanno, what does and doesn't work. So I'm in the midst of experimenting, basically completely ruining these canvases one by one. Right now I'm waiting for a 2nd coat of spray varnish to dry on 2 if them then ill pour over it to see if the cardboard holds up. Ill let you and your viewers know! Thank you for being so generous and sharing all these great experiments. You are indeed the best content on UA-cam for pouring!!
@@vegasmainiac7745 Wow, so sorry to hear that you had that experience at Hobby Lobby!! 😢😞 Do you by chance know the name brand so the rest of us can avoid that mistake? I'm a newbie and would love the information. I JUST ordered some canvases yesterday from Walmart and did my first ACRYLIC pours (I was feeling courageous so I posted the video on my Channel.) ...but I have no idea how they will react with the paint over time... 🤞🤞
I refuse to shop at Hobby Lobby. There are other places, that have much better customer service and are just a better company all around to spend my money at. I'm sorry you had such a bad experience. Do you have a Michaels or Joann's close to you. I love Michael's, it's a great store!
Great Video. I just found your videos as I started to search how to videos on acrylic pouring. Your video for beginners was excellent. You gave us everything we needed to do our first pour. I became a caregiver to my 88yr old mother whom is suffering from Alzheimers. We have tried acrylic painting videos but she gets tired and bored of following instructions then just paints whatever which is fine, however she wants me to just copy her. I love my mother dearly so I thought maybe pouring would be easier for her. Your videos show us why we should do things a certain way by showing live videos after explaining the techniques you demo by doing a pour. Thank you for showing us what you have learned in trial and error so that we can have successful pours with our first one. 😊
I saw somewhere on UA-cam to paint an ‘X’, from corner to corner on the back with Gesso. My lines are about 1 - 1 1/2 inch wide. It has worked for me. I experiment on canvas panels before doing a pour on a stretched canvas. I have bought my panels at Dollar Tree, Big Lots, Hobby Lobby and Ocean State Job Lot.
When I started painting, I thought I would use a canvas board to try out a new pour. It turned out to be really good painting, but the board bowed and the paint ran off the canvas. Now I try out new things on tile. Very helpful video.
That's just heartbreaking. Happened me too with a beautiful bloom.I can say my best ever(cos noone will know)🤣But I hot up next morning with a pool in the middle. 😫
Ahh huh! Now I know what it is lol. I did a video on tips & tricks for framing artwork, and what I did with my panels is I framed them which keeps them flat and they look great. Another great learning video! 🖌☺👍
I didn't even think about that but framing would totally put them back "straight" if done correctly. Thanks Shannon! I'll have to watch that video too. I don't think I've seen that one of yours.
THANK YOU, for doing this video! Small sizes naturally don't warp as bad, less area. (I THINK). I made coasters out of square, cheap panels. (5by5) I was able to resin them. The larger the panel cheap or not, I have bowed canvases. They do absorb too much h2o. You CAN paint traditional acrylic/oil paint on any of the flat canvas panels without bowing of any kind. Just don't prop them up against a wall for too long, before you frame them, you get a bow then if you are not careful. Make sure the panel is supported, as well. The paint will also stick to itself if you stack them one on top of the other without a nonstick surface in between each one. Thank you
Awesome!! Just to verify, the final tests were ALL done on Walmart panels? I had some pretty paintings on boards that warped but after they dried I slightly wet the backs and gently bent them, then put them on a flat surface with something heavy on it, which helped enough to frame. But this is so much better!! Thank you!! 🙏
The final rectangular ones yes. Most cheap Amazon ones will fare the same too. You can definitely bend them back if the warping hasn't ruined your composition.
I have recently used Canvas panels in my pours. They barely bowed. They are actually cheap from a low cost artist shop but based on your experiment they are fairly good quality.
I've not experienced this issue but I heard after it dries and your board has warped, apparently if you paint an X from corner to corner on the back with acrylic paint it'll pull out most of the warp.
Thanks! That explains it! I had a beautiful painting and was so sad when it bowed! I put it in a frame with a glass. Even though it was resined. But now I know! Thanks!
You may also try something another person did. He said he put some paper first and then added stack of books on top of his warped painting and in a few weeks it was totally flat.
It could also be that the canvas has a different gesso on them in combo with the sturdier inside. So better gesso the less water can get through the canvas.
Hi, thank you for posting this video. Sadly, it's a few months late for me to have avoided the horrible bending that I had. I do have a tip: One additional step, after covering the canvas with some type of sealant, is to use painter's tape on the back of the canvas. I found that when I made a few tape loops and added them to the back of my canvas that it really curbed the bowing. Mainly because it gave some resistance to the pull of the paint going into the cardboard fibers. I suggest painters tape or frog tape because it doesn't harm the canvas or the thin paper on the backer. I really appreciate your channel as it was the one that inspired me to start doing my own pouring art. Thank you and keep up the creative curiosity!
I don't do acrylic pouring but this advice you give is appropriate to all painters using canvas boards. As I have an assortment of weird and wonderful frames collected from charity shops etc over years I have been making my own panels from hardboard. After experimenting in a less scientific way than you I settled upon two coats both sides and edges of the hardboard with a brush on clear builders wood sealant which claimed to be have nano particles sinking into the board. Seems to work on small panels before PVA gluing on canvas and then gesso coats. I shall try a 24x36 inch panel soon but that will probably be plywood for a special project.
My last pour project warped badly and I'm waiting now for my second attempt to dry, I tried using a gloss sealer over the canvas panel to see if that would help. While waiting for it to dry I found this video, which makes me very hopeful :) thank you
Thank you so much for this valuable info. I was so excited to have done 2 dutch pours ( I am just beginning this colorful journey) and I was quite pleased with how they looked. Within an hour the sides bowed. I am so sad. The boards were from dollar tree, cheap canvas, expensive lesson. 😥
Before I pour, I spray the back of panel with water. It definitely helps. Sometimes I still get a little bowing on a rectangle panel, but so far none on a square one.
I had one warp once and I just waited until the acrylic was super dry, maybe 4 weeks. Then I went down the back side and weighed it down with books for a couple of days. I had to do that 2-3 times, but it worked very well and had lasted for months so far.
Once again I have to thank you for another informative video. I've been using cheap 11x17 boards and gluing furring strips on the back. Even using gesso first it warped a bit. Perhaps I put too much on. That said, my furring strips will now be used for my crafting.
Great video! My sweet dad bought me a whole bunch of cardboard canvas panels….thinking he was helping. They were just sitting there unused. Anyway I have a whole heap of spray gloss sealer, so I’m going to try this! Xx
Another truly valuable lesson David, Thanks so much! 😍 This is going to save so many of us some heartache, as well as lessen the strain on our wallets 😅. I started out with (cheap) boards and quite liked using them for Dutch pours but, of course, they bowed so I had written them off entirely…. But now I can search for the higher quality MDF ones and have another go with them. Thanks so much once again. You really are a superstar! ⭐️ 😎 🎨
Glad it was helpful Nikki. I wish amazon offers were more up front about what is inside. Seems there are millions of knock-offs and more keep popping up.
Merci infiniment pour cette vidéo. Je comprends maintenant et grâce à vous je sais ce qu’il faut faire pour éviter ces déformations désastreuses. Merci 👍💝😘
I've found that using some thicker paint and sticking it on the back will " glue " it to rack while drying, that did keep it flat. I like your idea better though, spray it to seal it, there's less chance of warping for sure...I simply kept my fingers crossed! 😂 those that did warp, I sprayed the back with water, placed them face down on wax paper and weighed them down for a few days. 👈 It's still not perfect, as sometimes they'll curl after awhile. Thanks for snapping those panels and showing the differences!
@@susanglait7722 Actually, I encountered this, too, after I posted. But I definitely used too much paint. I really liked it the composition, so I left it. Big mistake. Not only did it warp the panel, it cracked! Sigh....
Great information!! I've done some beautiful paintings on these boards and they bent. I'll have to buy a better brand. I stopped getting them for this exact reason.
Thank you for this! I have some panels that I had done without knowing their tendency to warp. I have more still in the plastic that I want to use, but have been hesitant due to my previous experience. Now to get something to help seal them so I can make some awesome panels. 😊
Another thank you I had indeed add indeed tried the boards and found them bowed I will once again try With one of your experiments and see if I can do the same once again thank you so much for all of your help
Glad to help Nancy. Make sure you seal both sides and the paint dripping around the edges can cause the same problem on the underside with moisture retention.
All of mine warped but I’ve been okay with it because that way they stand up by themselves and can be displayed without falling over…but I would like for some to lay flat so thanks for this….
You are amazing. You’re an artist and like an art-tech guy at the same time lol always diggin in the weeds and researching topics and issues most people face a lot or have a least come across once or twice before. I did a pour on a panel once but I tilted it to where the layer was super thin, like taking forever to cover, and done on a more quality canvas so I didn’t have any issues, however this was good to know so I don’t forget that all panels are not created equal, just like everything else. I will definitely reference this video on my channel when I do another pour. You rock!
David had this problem after reusing the panel for the 6th time. Solution, I sprayed the back wet put it on an elevation (only the corners) and put some lead or another heavy material on the corners and the middle than let it dry. If not successful try a second time. Succes and greetings from 🇧🇪 Carla.
Hi David, thanks for his useful information. My wife is a huge fan of your work and the warping is a constant problem! So we will use a better material next time and we can avoid our quarrels ;- ))
Thank you. I have to work on cheap canvas panels because I paint and sell seascapes to local tourists through local gift shops and I have to keep all my expenses as low as possible in order to keep my prices low. It's good to know that if I just seal both sides of panels, my panels won't warp. But also, if the customer immediately frames their painting, I assume that will stop warping of the panels?
I tend to think its something to do with the size. 5x7 Artezas are solid, I haven't seen a single thing go wrong with them after something like 18 different pieces but arteza 8x10 about a third of them self destruct and they should be made of the same stuff. More than half of the US Art Supply ones go wrong too but those are 12x12 I can't be sure that it isn't an amplified size effect.
Size definitely amplifies the affect. The more surface area you have especially that is different size across the different axis will have more room to "move" and therefore bow. The bigger that board the more sturdy you want the insides to be.
Thanks for that information. I'm painting 5x7 inch seascapes for consignment to gift shops to sell to tourists. My 5x7s look fine. But tonight I decided I could paint 8x10s just as quickly as the 5x7s and so earn more money. But I hadn't even thought about warping since my Walmart 5x7s don't warp. I now need to know for sure which sealant to buy. I'll watch the video again.
I enjoy the videos you put out. I use the panels to test color combinations. I did notice the thicker the paint there was little to no warping. I have used Arteza, US Art Supply, and Shuttle Art Panels.
When I first started with paint pouring recently all I had was canvas panels. I had ordered them by accident. Some of mine blow some don't. But recently I had one that bowed and I let it cure for a couple weeks. Then I put I think it was wax paper or parchment paper over it and just put a book on top of it for a few days to see what it would do and it flattened out in my paint didn't crack or anything. I also try to play something underneath them to support them as they're trying in hopes that it won't bow.
I Had same problem with walmart Boards. another problem i Have was if you take the poured cheap board from warm to cold it makes it warp more also. The Bigger the Board The more Bow/warp as well. If You afterwards put the poured board in a fairly strong Frame It Straightens the Board for viewing. Frames ussually needed for Board types any-way being they Have NO edge to hand Them from On the wall, or Glue them to a Piece of Brittler plywood Of Which a hanging hole Can be drilled bcz Some Of the prettiest get Bowed so U Dont Want To Toss them of use them merely as a paperweight :)
My canvas panels from Michaels bowed. I am going to try spray paint or gloss sealer next time. One of my best pours was on a canvas panel. The board warped and separated from the painted canvas. Trying to decide what to do with the painting. Thanks for the fantastic videos and ideas. I appreciate you.
Framing will straighten our a warped board. Also put some papers on top and then add the weight of some books for a couple of weeks. That will also flatten a dried painting.
Thank you so much for doing this!! I had both Artists Loft and Walmart ones and I said the exact thing about Walmart not being good quality. Obviously, my other issues were my paints were too thick.
Tape down the middle. Pour one side. Let dry. Take down the middle on the other side. Pour and let dry. It is hard to keep a completely straight line especially on the bigger canvase with two sets of wet paint but some artist do it.
I had that problem when I started. My first couple curled almost into a roll. Since then, I spray painted both sides with what ever base color I want. Depending on what I'm painting, I might put the same color as a base to make the paint flow. On my butterflies & peacock I left the base dry also on my chain pulls. I mostly use canvases now, except for the hot wheels series. (subscribed+all)
I didn’t destroy one to see what it was made of but I found the warp after a color test. I buy the cheap Walmart/dollar store ones for testing results before I use a canvas (lesson learned from not testing first). Some colors and mixes I make just don’t like to play well with others or isn’t desired outcome. I just took some lids from empty 2 Oz paints and nailed them through the canvas to a board. I’m not using them for anything else so that worked for me. But you couldn’t be more helpful for another purpose for these. They do absolutely need sealed because of warping. I haven’t tried artist loft because I’m thrift-ish. But not everyone has $ to throw at a better quality.
Ament. I try to keep costs at the forefront of my mind because that is how I am with my paints and I figure my audience now is pretty much the same as I am/was. Thanks for watching Kishea.
Great video. Can you do one on Dollar Tree Acrylic Paint? I’ve been using it along with craft and student paint and I am not seeing a difference in quality. Their paint is in 4 ounce bottles which is a bigger bang for the buck. Thank you for the video from Syracuse, NY
Sure. Wait till it is completely dried and cured (weeks). Lightly spray the back with water or rub the back with a damp (not dripping) dish towel. Place parchment paper on both sides and put it on a flat table with something flat and heavy on top (books, etc). Not too much weight, just enough to make it lay flat. Leave it for a few days .
@@LeftBrainedArtist yes but I gesso them to kind of seal them. I like the spray idea you have and will be getting some. Faster than a thin coat of gesso.
Again it shows that you get what you pay for. For fun I painted some panels from the Dollar Tree....you can imagine the outcome. Thanks a bunch for this experiment.👌😁
Hi! I have used canvas panels. Some did warp and others did not. I would check the backs to see what kind they were. Now, for the ones that did warp can I still paint or seal the backs and if I do will it contract the warp. I have put heavy things down the middle of them first to straighten them out. Thanks in advance!!
If you straightened them out already no need to seal the back to fix that. However, if you live anywhere humid I would recommend sealing them all the way around so they dont' warp again.
No. Once it is dry I recommend sealing the front and then putting it between two flat objects like books with a quick spray of water on the back side. You can use parchment paper on both sides to make sure it doesn't stick to the books. Nothing too heavy just enough to flatten. Might take 24-48 hours.
My problem with canvas boards is that I’ve had the canvas separate from the board. So basically, I ended up with a piece of canvas attached to nothing. Buying canvases from Michael’s in bulk is cheap enough that it’s not worth it to me to buy boards anymore
Hi. I purchased a set of Arteza Primed Canvas Panels, in different sizes. Though they say they are made from acid free recycled paper, they seem to be pretty tough, with very little give to them. Is it possible to make a frame with a center brace on the back side, using lathes and double sided tape, so it can be removed later? Would this help to stop some of the warping?
Hi David, It happened to me, LOL..I made such a pretty painting. The next day It was bowed, Oh Lord I was so sad, and MAD...I waited for it to dry for a few weeks than I put freezer paper over it and put a heavy book over it for a few days, I was able to save the painting but threw the rest of those canvases away! ("Their EVIL") LOL There is a canvas board I like I think is mad by USA Something? I can't remember, But their Great!! I had to laugh when I saw this video, Man you touch on all the problems we Artist face!! Thanks again David! We always can count on you.. Canvas boards are nice to put in picture frames they make great classy gifts..Haha..😊
Thanks so much for sharing. Can I please ask if anyone's had success in straightening them after the fact? I have a Monte Marte canvas board which I wish to put iridescent varnish on. Perhaps put weight on top of? Thanks.
Lightly wet the back of the canvas with a spray bottle or damp cloth. Wipe off excess water. Cover in wax paper both sides. Put weight on it until it just barely flattens. Do not use excess weight. Leave for 24 to 48 hours.
Several folks said not to wet the back of the board because it can sink in and later cause mildew inside. ..... A dozen of the comments I just read on here say they put paper on top of their thoroughly dry painting, and then some heavy books on top of that and it flattened the painting nicely after a couple of weeks.
Kathy Carr gave some great advice above - " I had some pretty paintings on boards that warped but after they dried I slightly wet the backs and gently bent them, then put them on a flat surface with something heavy on it, which helped enough to frame. But this is so much better!!" Just make sure you wait till they are completely dried and cured. I like to sandwich them in parchment paper just to make sure it doesn't bleed or scrap on my weight and table.
Does this warping happen with any paint? I have the Walmart panels and have been painting with acrylic matte and gloss paint.. usually using 2 or 3 coatings for backgrounds . . Does this mean my artwork will warp over time if hanging inside?
The warping happens because of the water in the paint so any paint can really cause this. If it doesn't warp during the initial drying process then it won't really warp afterwards.
Yes. Let them dry copletely (week +). Spray the back LIGHTLY and make sure everywhere gets a little. No standing water. Then sit them on a flat surface cover with parchment paper, and put a hard flat object on top. let it dry for 24-48 hours. Usually straightens it right now. Might have to repeat two or three times for very obstinate boards. 8)
Yes you could as long as it is flat when you resin. It shouldn't warp again as the resin really has no water in it that can seep in to the canvas panel to warp it again.
thank you, is there a way to fix the ones that already has this issue, but have a nice image on, like saving them? like will it help to put something heavy on them, but if they are not cured yet, will something heavy destroy their process somehow?
Wait till they are cured for sure Linnea. Then spray the back with water lightly. Then press them between two objects like a large book with a sheet of parchment paper in between the book and the painting. It might not flatten immediately but over the course of 24 hours it wil. If not, repeat each step with slightly more weight (2nd book).
Not familiar with that particular brand. I am not sure about cotton panels as I haven't tried them yet. I assume they are prone to warp also based on how cotton handles in clothing.
I have a good amount of left over adhesive floor tiles and was wondering if I cut and fit them tot he backs of the panels,would that help keep them from bowing or would the adhesive eat the panel?
@@LeftBrainedArtist Cool, I appreciate the response! I've used alot of advice you've given on your channel and one day,hope to be as talented at a you are. Have a wonderful day!
@@LeftBrainedArtist Well, it didn't hold the board down lol the edges peeled back but they are dry so it easier to press them back down and hope they hold.
@@PsychoticGenius So interesting. Thanks for getting back to me. That power of drying threads in the canvas apparently has more strength than the glue.
Hi David. Thank you for this experiment! When I first started out I didn’t know that canvas panels might not be a good option. But I think I did use artist loft and it was kind of a crapshoot. sometimes they would bow and sometimes not. But I quickly moved on to stretch canvases because even though those are more expensive you’re wasting paint or I was wasting paint (& time) by using the canvas panels and just hoping that it would work out. In any regard you are my favorite teacher on the tube! A lot of the other artists, 90% of their videos are simply showing them doing a pour. They typically don’t explain the mechanics of it or even go farther and do experiments like this!
Thanks my friend. That is exactly why I started this channel. My constant need to understand why just wasn't being provided for in an easy enough way.
Again you have taught me something more. My canvases were warping thank you
Happy to help Barbarella. 😀
Put some books on top of those canvases for a while and they will flatten.
JUST had this happen today and didn’t know why. Thank you so much! This was my first time to practice acrylic pouring, and I didn’t know what I’d done wrong
You are so welcome! Happens to all of us.
That's a great experiment - I love that you actually dissected the boards.
I've been using the panels that I bought to practice when I began pouring, as my drip test diary. (5X7, a five pack for $2.50, was no bargain if I can't use them.)
Nice to know that I can actually USE them for painting!
Thank you so much.
Glad to help Rebekah. Lots of interesting things to learn with pouring.
THANK YOU THANK YOU! This was a very important lesson I have been glue/ painting the backs of my canvas panels to prevent warping and some still did but I didn’t relize a lot of the issue was the QUALITY of the boards.. that and the point you made about square vs rectangular boards.. this was a great video for beginning pour artists. You are a life saver! My wallet also thanks you!
Glad to help my friend. Happy pouring!
This is an excellent subject to cover and you're just so thorough. When I was just doing regular acrylic painting I always used canvas boards from Michael's because I could easily fit them into a regular frame. Here's why I especially love this content: when I first started pouring, I fell into the hobby lobby trap. I bought a bunch of the canvases supposedly made just for pouring. It didn't occur to me that they'd sell something so counter intuitive and disastrously useless. The canvas is supported with cheap cardboard! The second that gets wet it buckles and your pour is ruined. I was horrifed, even moreso when I tried to return $60 worth of them explaining to the manager what was wrong with them and she refused. FYI their canvas panels are the same cheap quality. I lost my receipt but I shopped there all the time so I asked for a store credit. Again she refused! I'm stuck with them and trying to figure out how to salvage them. Sorry this is such a long comment but I think its important for people to know about this stuff, yanno, what does and doesn't work. So I'm in the midst of experimenting, basically completely ruining these canvases one by one. Right now I'm waiting for a 2nd coat of spray varnish to dry on 2 if them then ill pour over it to see if the cardboard holds up. Ill let you and your viewers know! Thank you for being so generous and sharing all these great experiments. You are indeed the best content on UA-cam for pouring!!
At least you get to experiement. That's what I love most about pouring. Learning by failing.
Haha yes, learning all over again to think things through and find the logic before spending a bunch of money!
@@vegasmainiac7745 Wow, so sorry to hear that you had that experience at Hobby Lobby!! 😢😞
Do you by chance know the name brand so the rest of us can avoid that mistake?
I'm a newbie and would love the information.
I JUST ordered some canvases yesterday from Walmart and did my first ACRYLIC pours (I was feeling courageous so I posted the video on my Channel.) ...but I have no idea how they will react with the paint over time... 🤞🤞
I bought some Masters’ Touch canvas panels (12 x 12) from Hobby Lobby. I poured with JUST enough paint to cover. They curled up like crazy.
I refuse to shop at Hobby Lobby. There are other places, that have much better customer service and are just a better company all around to spend my money at. I'm sorry you had such a bad experience. Do you have a Michaels or Joann's close to you. I love Michael's, it's a great store!
Great Video. I just found your videos as I started to search how to videos on acrylic pouring. Your video for beginners was excellent. You gave us everything we needed to do our first pour. I became a caregiver to my 88yr old mother whom is suffering from Alzheimers. We have tried acrylic painting videos but she gets tired and bored of following instructions then just paints whatever which is fine, however she wants me to just copy her. I love my mother dearly so I thought maybe pouring would be easier for her. Your videos show us why we should do things a certain way by showing live videos after explaining the techniques you demo by doing a pour. Thank you for showing us what you have learned in trial and error so that we can have successful pours with our first one. 😊
So glad to help Diana. I hope pouring can be an amazing experience for you and your mum.
I saw somewhere on UA-cam to paint an ‘X’, from corner to corner on the back with Gesso. My lines are about 1 - 1 1/2 inch wide. It has worked for me. I experiment on canvas panels before doing a pour on a stretched canvas. I have bought my panels at Dollar Tree, Big Lots, Hobby Lobby and Ocean State Job Lot.
That is a excellent test for me to try
Thank you I just recently purchased a bundle of canvases like you’re using from Amazon they all bode now I know why thank you for the info.
You are so welcome! That was where my first batch came from and they weren't very good either.
Read my comment about wetting the back. It works.
When I started painting, I thought I would use a canvas board to try out a new pour. It turned out to be really good painting, but the board bowed and the paint ran off the canvas. Now I try out new things on tile. Very helpful video.
Those are harsh lessons we learn for sure Patricia.
That's just heartbreaking. Happened me too with a beautiful bloom.I can say my best ever(cos noone will know)🤣But I hot up next morning with a pool in the middle. 😫
Ahh huh! Now I know what it is lol. I did a video on tips & tricks for framing artwork, and what I did with my panels is I framed them which keeps them flat and they look great. Another great learning video! 🖌☺👍
I didn't even think about that but framing would totally put them back "straight" if done correctly. Thanks Shannon! I'll have to watch that video too. I don't think I've seen that one of yours.
@@LeftBrainedArtist Great, it's under tips & tutorials. 🖌☺
THANK YOU, for doing this video! Small sizes naturally don't warp as bad, less area. (I THINK). I made coasters out of square, cheap panels. (5by5) I was able to resin them. The larger the panel cheap or not, I have bowed canvases. They do absorb too much h2o. You CAN paint traditional acrylic/oil paint on any of the flat canvas panels without bowing of any kind. Just don't prop them up against a wall for too long, before you frame them, you get a bow then if you are not careful. Make sure the panel is supported, as well. The paint will also stick to itself if you stack them one on top of the other without a nonstick surface in between each one. Thank you
Totally true. The less distance the fibers run the less they can push and pull.
Awesome!! Just to verify, the final tests were ALL done on Walmart panels? I had some pretty paintings on boards that warped but after they dried I slightly wet the backs and gently bent them, then put them on a flat surface with something heavy on it, which helped enough to frame. But this is so much better!! Thank you!! 🙏
The final rectangular ones yes. Most cheap Amazon ones will fare the same too. You can definitely bend them back if the warping hasn't ruined your composition.
Of course this awesome guy has the answers! I always end up back here! THANK YOU!!
Aw, thanks Natacha.
I have recently used Canvas panels in my pours. They barely bowed. They are actually cheap from a low cost artist shop but based on your experiment they are fairly good quality.
You found some winners than. Seems to be hit and miss for me.
Love how you explain everything so well . You make it look so easy . Thank you
So nice of you Linda. Thanks.
Once again another video full of information keep up the gd work love it
Thanks Gary!
I find a couple of thin coats of gesso prevent most warping. I also find that round canvases warp less than square ones.
Great video 😁
Gesso isn't made to be waterproof which is why you have to do multiple coats. One coat of a stain blocker would work also (Killz etc.)
@@LeftBrainedArtist thanks very much!
Thank you so much. I got some panels for Christmas and they bend. I just waited for it to dry and then put something heavy on it for a few days
Excellent Tina. Thanks for watching and the suggestion.
I've not experienced this issue but I heard after it dries and your board has warped, apparently if you paint an X from corner to corner on the back with acrylic paint it'll pull out most of the warp.
I wlll have to give that a try.
Youre so awesome! Love the experiments!
Thank you Karen. Glad to help.
Thanks! That explains it! I had a beautiful painting and was so sad when it bowed! I put it in a frame with a glass. Even though it was resined. But now I know! Thanks!
Glad it helped Jana. Thanks for watching.
You may also try something another person did. He said he put some paper first and then added stack of books on top of his warped painting and in a few weeks it was totally flat.
It could also be that the canvas has a different gesso on them in combo with the sturdier inside. So better gesso the less water can get through the canvas.
True true. Lots of factors to pay attention to.
Hi, thank you for posting this video. Sadly, it's a few months late for me to have avoided the horrible bending that I had. I do have a tip: One additional step, after covering the canvas with some type of sealant, is to use painter's tape on the back of the canvas. I found that when I made a few tape loops and added them to the back of my canvas that it really curbed the bowing. Mainly because it gave some resistance to the pull of the paint going into the cardboard fibers. I suggest painters tape or frog tape because it doesn't harm the canvas or the thin paper on the backer. I really appreciate your channel as it was the one that inspired me to start doing my own pouring art. Thank you and keep up the creative curiosity!
Thanks for the suggestions Jim.
I don't do acrylic pouring but this advice you give is appropriate to all painters using canvas boards. As I have an assortment of weird and wonderful frames collected from charity shops etc over years I have been making my own panels from hardboard.
After experimenting in a less scientific way than you I settled upon two coats both sides and edges of the hardboard with a brush on clear builders wood sealant which claimed to be have nano particles sinking into the board. Seems to work on small panels before PVA gluing on canvas and then gesso coats. I shall try a 24x36 inch panel soon but that will probably be plywood for a special project.
That is a great idea Philip. Sounds simliar to how I sealed my composite board before painting that we made shelves in my mudroom with.
My last pour project warped badly and I'm waiting now for my second attempt to dry, I tried using a gloss sealer over the canvas panel to see if that would help. While waiting for it to dry I found this video, which makes me very hopeful :) thank you
Sorry to hear that but I think yuo're right on being hopefull.
Thank you so much for this valuable info. I was so excited to have done 2 dutch pours ( I am just beginning this colorful journey) and I was quite pleased with how they looked. Within an hour the sides bowed. I am so sad. The boards were from dollar tree, cheap canvas, expensive lesson. 😥
That's a hard lesson we seem to always learn Sarah. Glad to help you find some answers and maybe some mitigation steps going forward though.
Before I pour, I spray the back of panel with water. It definitely helps. Sometimes I still get a little bowing on a rectangle panel, but so far none on a square one.
Interesting Billy. I'll have to try that.
Thanks so much for this David. My Artist Loft panel warped but I’ll spray them first. Great idea!
YW Tana. Glad to help.
Thanks David, I appreciate your time and your experiments. You are great.
My pleasure Jeannie.
No wonder ! Thank you! 🎉
You're welcome Margarita. Glad to help.
Thank you for solving my issue! This happened to me with the Walmart panels and I will be buying the ones from Michael's moving forward.
Glad I could help Nicole
I had one warp once and I just waited until the acrylic was super dry, maybe 4 weeks. Then I went down the back side and weighed it down with books for a couple of days. I had to do that 2-3 times, but it worked very well and had lasted for months so far.
Awesome. Thanks Marie.
I had read about doing that when painting on paper painting pads. Thanks.
Once again I have to thank you for another informative video. I've been using cheap 11x17 boards and gluing furring strips on the back. Even using gesso first it warped a bit. Perhaps I put too much on. That said, my furring strips will now be used for my crafting.
Well that is one bonus. Recycling is always good.
Great video! My sweet dad bought me a whole bunch of cardboard canvas panels….thinking he was helping. They were just sitting there unused. Anyway I have a whole heap of spray gloss sealer, so I’m going to try this! Xx
Should work great. Good luck Elizabeth.
Aaaaah I was wondering why this kept happening. Thank you so much for the great video, very informative!
Glad it was helpful! I hope you have better success with these in the future Lisanne.
Another truly valuable lesson David, Thanks so much! 😍
This is going to save so many of us some heartache, as well as lessen the strain on our wallets 😅.
I started out with (cheap) boards and quite liked using them for Dutch pours but, of course, they bowed so I had written them off entirely…. But now I can search for the higher quality MDF ones and have another go with them. Thanks so much once again. You really are a superstar! ⭐️ 😎 🎨
Glad it was helpful Nikki. I wish amazon offers were more up front about what is inside. Seems there are millions of knock-offs and more keep popping up.
Merci infiniment pour cette vidéo. Je comprends maintenant et grâce à vous je sais ce qu’il faut faire pour éviter ces déformations désastreuses. Merci 👍💝😘
Heureux d'aider mon ami. Bonne chance.
Excellent information! Thanks David!
Glad it was helpful!
Thank you, David! Another great lesson…I have experienced this very problem…now I know why! 👍💙
Glad to help Nita. Pretty common problem we all face starting out I think.
I've found that using some thicker paint and sticking it on the back will " glue " it to rack while drying, that did keep it flat. I like your idea better though, spray it to seal it, there's less chance of warping for sure...I simply kept my fingers crossed! 😂 those that did warp, I sprayed the back with water, placed them face down on wax paper and weighed them down for a few days. 👈 It's still not perfect, as sometimes they'll curl after awhile.
Thanks for snapping those panels and showing the differences!
Thanks for the suggestions Angel.
I've recently started using Arteza Panels. They work wonderfully well.
Good to know. Thanks Judy.
@@susanglait7722 Actually, I encountered this, too, after I posted. But I definitely used too much paint. I really liked it the composition, so I left it. Big mistake. Not only did it warp the panel, it cracked! Sigh....
@@susanglait7722 The bigger they are the more likely they are to warp for sure.
This has happened to so many of my canvas boards. Ugh. Some of mine are so bad the canvas lifted almost completely off of the cardboard.
Hopefully now you have to tools to prevent it most of the time
@@LeftBrainedArtist yes! I'm so excited. Thank you
Great information!! I've done some beautiful paintings on these boards and they bent. I'll have to buy a better brand. I stopped getting them for this exact reason.
I did the same unfortunately (or fortunately depending on how you look at it).
Thank you for this! I have some panels that I had done without knowing their tendency to warp. I have more still in the plastic that I want to use, but have been hesitant due to my previous experience. Now to get something to help seal them so I can make some awesome panels. 😊
If sealed properly they work great.
@@LeftBrainedArtist I'm gonna give it a try. 🙂
Another thank you I had indeed add indeed tried the boards and found them bowed I will once again try With one of your experiments and see if I can do the same once again thank you so much for all of your help
Glad to help Nancy. Make sure you seal both sides and the paint dripping around the edges can cause the same problem on the underside with moisture retention.
Thank you, David. I appreciate your teaching!
Anything for my friends Vonelle! 😃
@@LeftBrainedArtist 😁😁 and you are so appreciated!
Thanks for sharing.
Thanks for watching! Hopefully it helped Hana.
All of mine warped but I’ve been okay with it because that way they stand up by themselves and can be displayed without falling over…but I would like for some to lay flat so thanks for this….
You're welcome. I never thought of the self stand aspect of this. I guess I like my stuff to be uniform.
Wow, that is very interesting. Another great video full of info. Paintings look great and I love the light green. Thanks.
I need to work with the amounts a little more to get some better color variation.
Those are all really nice pours!
Thanks a bunch! I think I am going to make the 4 square ones in to a single pieces with some wood borders.
@@LeftBrainedArtist I was thinking they would make a good quaddyptich. Is that even a word??
You are amazing. You’re an artist and like an art-tech guy at the same time lol always diggin in the weeds and researching topics and issues most people face a lot or have a least come across once or twice before. I did a pour on a panel once but I tilted it to where the layer was super thin, like taking forever to cover, and done on a more quality canvas so I didn’t have any issues, however this was good to know so I don’t forget that all panels are not created equal, just like everything else. I will definitely reference this video on my channel when I do another pour. You rock!
Thanks Heather. I really appreciate the comment and the compliment. We are all in this together for sure.
David had this problem after reusing the panel for the 6th time. Solution, I sprayed the back wet put it on an elevation (only the corners) and put some lead or another heavy material on the corners and the middle than let it dry. If not successful try a second time. Succes and greetings from 🇧🇪 Carla.
Great tip.
Ps picture upside down.
Hi David,
thanks for his useful information.
My wife is a huge fan of your work and the warping is a constant problem!
So we will use a better material next time and we can avoid our quarrels ;- ))
Yeah, we don't want any of the quarrels if we can help it for sure.
Thank you. I have to work on cheap canvas panels because I paint and sell seascapes to local tourists through local gift shops and I have to keep all my expenses as low as possible in order to keep my prices low. It's good to know that if I just seal both sides of panels, my panels won't warp. But also, if the customer immediately frames their painting, I assume that will stop warping of the panels?
The warping really won't happen after the paint is dry. If it dries straight then you should be ok.
I tend to think its something to do with the size. 5x7 Artezas are solid, I haven't seen a single thing go wrong with them after something like 18 different pieces but arteza 8x10 about a third of them self destruct and they should be made of the same stuff. More than half of the US Art Supply ones go wrong too but those are 12x12 I can't be sure that it isn't an amplified size effect.
Size definitely amplifies the affect. The more surface area you have especially that is different size across the different axis will have more room to "move" and therefore bow. The bigger that board the more sturdy you want the insides to be.
Thanks for that information. I'm painting 5x7 inch seascapes for consignment to gift shops to sell to tourists. My 5x7s look fine. But tonight I decided I could paint 8x10s just as quickly as the 5x7s and so earn more money. But I hadn't even thought about warping since my Walmart 5x7s don't warp. I now need to know for sure which sealant to buy. I'll watch the video again.
Thank you David. That was very helpfull.
Very welcome Lydia.
Thank You David
Always a pleasure Shawn. This is a frustrating problem that I think most of us have run up against.
I enjoy the videos you put out. I use the panels to test color combinations. I did notice the thicker the paint there was little to no warping. I have used Arteza, US Art Supply, and Shuttle Art Panels.
Good to know Shanna. Thanks.
When I first started with paint pouring recently all I had was canvas panels. I had ordered them by accident. Some of mine blow some don't. But recently I had one that bowed and I let it cure for a couple weeks. Then I put I think it was wax paper or parchment paper over it and just put a book on top of it for a few days to see what it would do and it flattened out in my paint didn't crack or anything. I also try to play something underneath them to support them as they're trying in hopes that it won't bow.
Great suggestions Crystal, thanks. Definitely nice to have a fall back plan in case your panels do bow.
Thank you David for experimenting with these canvas boards! I tend to stay away but may try some Artist Loft ones if I find a good price!
That's about my plan too.
I Had same problem with walmart Boards. another problem i Have was if you take the poured cheap board from warm to cold it makes it warp more also. The Bigger the Board The more Bow/warp as well. If You afterwards put the poured board in a fairly strong Frame It Straightens the Board for viewing. Frames ussually needed for Board types any-way being they Have NO edge to hand Them from On the wall, or Glue them to a Piece of Brittler plywood Of Which a hanging hole Can be drilled bcz Some Of the prettiest get Bowed so U Dont Want To Toss them of use them merely as a paperweight :)
Thanks for the suggestions!
Thank you for doing this
You are more than welcome Kris. I was frustrated when it happened to me and want to make sure that others can avoid it if at all possible.
Thanks a bunch for this video! Appreciate ya!
My pleasure T.J.
My canvas panels from Michaels bowed. I am going to try spray paint or gloss sealer next time. One of my best pours was on a canvas panel. The board warped and separated from the painted canvas. Trying to decide what to do with the painting. Thanks for the fantastic videos and ideas. I appreciate you.
I am sorry to hear that. No fun with a great pour for sure.
Framing will straighten our a warped board. Also put some papers on top and then add the weight of some books for a couple of weeks. That will also flatten a dried painting.
Thank you so much for doing this!! I had both Artists Loft and Walmart ones and I said the exact thing about Walmart not being good quality. Obviously, my other issues were my paints were too thick.
You are so welcome Kim.
Great info, thanks you xxx
Glad to help Cindy.
That was interesting. I’m not really surprised about the quality difference. But using spray paint is great idea!!
Thank you! Just wish it was a little warmer so I could do that outside. I had to fumigate my one room for two days after.
@@LeftBrainedArtist oh no! That’s one reason I live in Florida 😂🤷🏻♀️☀️
I've been looking for how to split a canvas. Doing each side with a different color without bleeding over.
Tape down the middle. Pour one side. Let dry. Take down the middle on the other side. Pour and let dry.
It is hard to keep a completely straight line especially on the bigger canvase with two sets of wet paint but some artist do it.
I had that problem when I started. My first couple curled almost into a roll. Since then, I spray painted both sides with what ever base color I want. Depending on what I'm painting, I might put the same color as a base to make the paint flow. On my butterflies & peacock I left the base dry also on my chain pulls. I mostly use canvases now, except for the hot wheels series. (subscribed+all)
Geat tip Jim.
@@LeftBrainedArtist Thanks
I didn’t destroy one to see what it was made of but I found the warp after a color test. I buy the cheap Walmart/dollar store ones for testing results before I use a canvas (lesson learned from not testing first). Some colors and mixes I make just don’t like to play well with others or isn’t desired outcome. I just took some lids from empty 2 Oz paints and nailed them through the canvas to a board. I’m not using them for anything else so that worked for me. But you couldn’t be more helpful for another purpose for these. They do absolutely need sealed because of warping. I haven’t tried artist loft because I’m thrift-ish. But not everyone has $ to throw at a better quality.
Ament. I try to keep costs at the forefront of my mind because that is how I am with my paints and I figure my audience now is pretty much the same as I am/was. Thanks for watching Kishea.
Another good lesson. Thank you Left Brained.
You are alwasy welcome my friend.
Great video. Can you do one on Dollar Tree Acrylic Paint? I’ve been using it along with craft and student paint and I am not seeing a difference in quality. Their paint is in 4 ounce bottles which is a bigger bang for the buck. Thank you for the video from Syracuse, NY
Not sure I have a dollar tree close but I'll look in to it for sure.
Good to know thank you 👍🏽
Any time Noemi. Thanks for watching again. Seems like you're one of my "inner circle pouring nation". 👍
Good information. I have a variety of canvas boards my son gets for me. I will definitely pay attention to the brand. Thank you David.☮️💖🎶
Let me know if you find some other good ones Marcey.
Thank you for this experiment. Is there a way to straighten out a warped canvas panel?
Sure. Wait till it is completely dried and cured (weeks). Lightly spray the back with water or rub the back with a damp (not dripping) dish towel. Place parchment paper on both sides and put it on a flat table with something flat and heavy on top (books, etc). Not too much weight, just enough to make it lay flat. Leave it for a few days .
My husband bought me a bunch of them,since I was a beginner,,10 months later still sitting there after my 1st pour,lol
We need to fix that Deborah. Pouring is so much fun.
I've never had an issue with my pours on canvas panels with warping
You are one smart (maybe a little lucky) person than I think TeriAnn. 😆
Brilliant!!!!!
Thanks so much!
Thank you
Glad to help Christina
I have used artist loft always.
Did they always work for you? I've heard in the past they haven't been as high of quality.
@@LeftBrainedArtist yes but I gesso them to kind of seal them. I like the spray idea you have and will be getting some. Faster than a thin coat of gesso.
Again it shows that you get what you pay for. For fun I painted some panels from the Dollar Tree....you can imagine the outcome. Thanks a bunch for this experiment.👌😁
So true!
Hi! I have used canvas panels. Some did warp and others did not. I would check the backs to see what kind they were. Now, for the ones that did warp can I still paint or seal the backs and if I do will it contract the warp. I have put heavy things down the middle of them first to straighten them out. Thanks in advance!!
If you straightened them out already no need to seal the back to fix that. However, if you live anywhere humid I would recommend sealing them all the way around so they dont' warp again.
Try and coat the panel with glue both sides and let it dry it will not turn
Interesting. I can't use regular glue as it some brush marks which is why I diluted with water.
Can I try the sealer in the back idea on a painting already poured on? It bowed very much.
No. Once it is dry I recommend sealing the front and then putting it between two flat objects like books with a quick spray of water on the back side. You can use parchment paper on both sides to make sure it doesn't stick to the books. Nothing too heavy just enough to flatten. Might take 24-48 hours.
@@LeftBrainedArtist Thank you very much!
My problem with canvas boards is that I’ve had the canvas separate from the board. So basically, I ended up with a piece of canvas attached to nothing. Buying canvases from Michael’s in bulk is cheap enough that it’s not worth it to me to buy boards anymore
That's the ultimate conclusion I came to also Victoria.
Could you use gesso to prepare the panels? Thanks!
You can but gesso is NOT a moisture barrier. It will not prevent warping.
Have you tried a water proofing sealer like Thompsons? I am curious if that would work. I dont buy those anymore, just too iffy.
It probably would. I just don't buy them now either. I have been gifted some though so I started doing other tests with those.
Hi. I purchased a set of Arteza Primed Canvas Panels, in different sizes. Though they say they are made from acid free recycled paper, they seem to be pretty tough, with very little give to them.
Is it possible to make a frame with a center brace on the back side, using lathes and double sided tape, so it can be removed later? Would this help to stop some of the warping?
You sure can. I have seen people just put long popsycle sticks to help keep its form while the paint dries.
Hi David, It happened to me, LOL..I made such a pretty painting. The next day It was bowed, Oh Lord I was so sad, and MAD...I waited for it to dry for a few weeks than I put freezer paper over it and put a heavy book over it for a few days, I was able to save the painting but threw the rest of those canvases away! ("Their EVIL") LOL There is a canvas board I like I think is mad by USA Something? I can't remember, But their Great!! I had to laugh when I saw this video, Man you touch on all the problems we Artist face!! Thanks again David! We always can count on you.. Canvas boards are nice to put in picture frames they make great classy gifts..Haha..😊
I am going to try and frame those 4 that didn't bend much.
@@LeftBrainedArtist Great! I hope you will post them I would very much love to see how they look..
Thanks so much for sharing. Can I please ask if anyone's had success in straightening them after the fact? I have a Monte Marte canvas board which I wish to put iridescent varnish on. Perhaps put weight on top of? Thanks.
Lightly wet the back of the canvas with a spray bottle or damp cloth. Wipe off excess water. Cover in wax paper both sides. Put weight on it until it just barely flattens. Do not use excess weight. Leave for 24 to 48 hours.
Several folks said not to wet the back of the board because it can sink in and later cause mildew inside. ..... A dozen of the comments I just read on here say they put paper on top of their thoroughly dry painting, and then some heavy books on top of that and it flattened the painting nicely after a couple of weeks.
I used Artist loft. They ask warped. It was a year and a hall ago. Maybe they are improved now.
That was what I was thinking. The square ones should also be stronger than rectangular so that could have been the difference for me.
So do you know of any way to rescue a good--but warped--dried painting?
I have heard that you can place it under heavy books. I haven’t tried it myself. I would put some wax paper on top.
Kathy Carr gave some great advice above - " I had some pretty paintings on boards that warped but after they dried I slightly wet the backs and gently bent them, then put them on a flat surface with something heavy on it, which helped enough to frame. But this is so much better!!"
Just make sure you wait till they are completely dried and cured. I like to sandwich them in parchment paper just to make sure it doesn't bleed or scrap on my weight and table.
Good ideas, thanks much!!
Does this warping happen with any paint? I have the Walmart panels and have been painting with acrylic matte and gloss paint.. usually using 2 or 3 coatings for backgrounds . . Does this mean my artwork will warp over time if hanging inside?
The warping happens because of the water in the paint so any paint can really cause this.
If it doesn't warp during the initial drying process then it won't really warp afterwards.
Can you fix the boards if they’re warped?
Yes. Let them dry copletely (week +). Spray the back LIGHTLY and make sure everywhere gets a little. No standing water. Then sit them on a flat surface cover with parchment paper, and put a hard flat object on top. let it dry for 24-48 hours. Usually straightens it right now. Might have to repeat two or three times for very obstinate boards. 8)
Could I put a thin layer of resin on top, I’m placing vinyl letters and wanted to seal it off without it warping
Yes you could as long as it is flat when you resin. It shouldn't warp again as the resin really has no water in it that can seep in to the canvas panel to warp it again.
@@LeftBrainedArtist Thank you so much.
thank you, is there a way to fix the ones that already has this issue, but have a nice image on, like saving them? like will it help to put something heavy on them, but if they are not cured yet, will something heavy destroy their process somehow?
Wait till they are cured for sure Linnea. Then spray the back with water lightly. Then press them between two objects like a large book with a sheet of parchment paper in between the book and the painting. It might not flatten immediately but over the course of 24 hours it wil. If not, repeat each step with slightly more weight (2nd book).
Are cotton panels warp resistant? Are you familiar with a brand called LotFancy. Do these warp?
Not familiar with that particular brand. I am not sure about cotton panels as I haven't tried them yet. I assume they are prone to warp also based on how cotton handles in clothing.
I have a good amount of left over adhesive floor tiles and was wondering if I cut and fit them tot he backs of the panels,would that help keep them from bowing or would the adhesive eat the panel?
It probably would keep the bowing from happening. I do not think it would do anything to the panel.
@@LeftBrainedArtist Cool, I appreciate the response! I've used alot of advice you've given on your channel and one day,hope to be as talented at a you are. Have a wonderful day!
@@LeftBrainedArtist Well, it didn't hold the board down lol the edges peeled back but they are dry so it easier to press them back down and hope they hold.
@@PsychoticGenius So interesting. Thanks for getting back to me. That power of drying threads in the canvas apparently has more strength than the glue.
I wonder if gesso would work?
As long it is creates a seal. The spray on definitely would. The brush on would leave texture marks that always bother me.