Length of exposure varies depending on the size of screen and the lamp height. If you were to expose an 8"x10" screen with a 250W photo flood bulb positioned at a height of 16" from the screen, exposure time is 7 minutes; 10"x14" screen at 16" lamp height is 8 minutes, and a 12"x16" screen at 18" lamp height is 10mins
You can go to a hardware store to have the glass cut. It does not have to “fit” in the screen, it can be cut larger, if you expose from the bottom of the screen. It is not necessary, but will produce a crisper image. If you don’t use glass, you can use cellophane or scotch tape to secure the image to the screen.
This can be difficult because once you mix the Sensitizer with water, the shelf life on the Sensitizer begins. If you have some accurate scales, you can remove 1.08 grams of the paste and dissolve in about ¼ oz of water. Then pours this into 104 grams of the Diazo Photo Emulsion. The remaining Sensitizer can be used later.
This just in! Straight from our Speedball Chemists, here's what we were able to find out--Our Photo Emulsion has been widely used in the past for etching copper plates using Ferric Chloride and Nitric acid solutions, but we are not aware of the Nitric Acid:water ratio utilized.
If you want to speed it up, you could, but use low or no heat on the hair dryer. Heat can cause the emulsion to activate. Make sure you do this in the dark.
Great question, Thomas! Such a great question, in fact, that we're having to consult with our Chemists here to find out the answer for you. We will respond as soon as we hear back from them!
You would not be able to remove all of the Sensitizer from the small bottle without the water. It is a very thick material that would be difficult to remove. The weights in this bottle are measured for a precise mixture and if any of the Sensitizer remains in the bottle, you would likely get a poor exposure and washout of the stencil.
It is just a personal preference. On smaller screens, such as the one featured in the video; some people prefer using a squeegee. Scoop coaters are good for larger screens that have more area to cover, but again it all depends on the artist & their preference.
It appears that the sensitizer was not completely dissolved in the water prior to mixing with the emulsion. Your screen should still work, but you may get some washout in the areas of the black streaks. Try to avoid putting your image over these areas with streaks. If you have some washout in the streak areas, then apply screen filler to block any openings.
I purchased the emulsion and sensitizer seperately. The emulsion is 26.4 fl oz. The sensitizer bottle is only 2fl oz. What amount of sensitizer per emulsion? I cant seem to find this anywhere. No instruction came with my order.
What you have is the perfect size for each. If you add water to the 2fl oz bottle and mix per the instructions, it is pre-measured to be ideal for use with the 26.4 fl oz Emulsion. Happy printing!
hey do you people read directions? LOL!! Thanks for the tutorial... Simply easy to do. the kit is cool because it has all three elements to start and clean my screen. SUPER EASY!! My 9 year old son did it with the tutorial and I made him read the directions as well. :)
You do not need a darkroom to complete the photo emulsion process. Once you have coated your screen you will need to place it in a dark area to dry. However, once it is dry you can expose it to your light source - no darkroom needed!
@@juliatachibana1733 currently, this is our only emulsion system available if you would like to coat your own screens. we do have a new line of pre-coated mesh that will be available very soon!
Well, it could be done, but there would be some waste and you would need some very accurate scales. The time starts ticking once the sensitizer is dissolved in the water. The correct ratio would be 1.08 grams of the sensitizer paste, dissolved in ½ ounce of water, then mix into 104 grams of the blue diazo sensitizer.
This there so many potential light sources available for a printmaker to choose from, the only exposure times we are able to guarantee are those paired with the recommended light sources (250W BBA photoflood or Speedball LED Lamp) from our offering. Any deviation from those sources would require experimentation and evaluation in your studio specific to your screen size.
Hi ~ ive exposed with the Sun before. There are videos on UA-cam detailing how to if you look into it. I used a test screen with different times marked on the side. 30 seconds, 1 minute etc. As the time went by i covered the screen as to not further expose those.. then wash out and see what time worked best. Proceed by exposing your non test screen with the time that worked best. I used this method to make company shirts with my image!
Hello! Thank you so much for taking the time to review this video. We have a more detailed / current version of this tutorial available on our UA-cam Channel (Speedball Art Products) in our "Playlists" section that includes specifics like what you're outlining here. ua-cam.com/video/LAWEseSxRt4/v-deo.html Hope that helps and thanks again for viewing!
Thanks so much for tuning into this video! This process does not require being in a dark room to complete, however, we do recommend being away from bright/direct sunlight. Thank you!
The film has to be fully transparent or opaque. The exposed screen can either let the ink through or block the ink completely to create a pattern or design on the printed surface.
The Speedball® Craft Squeegee is what is used to coat the screen with Photo Emulsion in this video. It is a 70 Durometer, square-edged blade, 9" squeegee that is used for general printing applications. Thank you for your question!
how long can you keep a coated screen with emulsion and not exposed. Stored correctly. I've been in the hospital for a couple of months Are they still good?.
First, we're so sorry to read of your time in the hospital and hope that you are fully recovered and feeling great now! To answer your question, we usually would only recommend up to about a month, and even then I would usually expose at a reduced time. Some reaction will take place in the dark overtime. Since it has been more than a month, we would recommend trying to wash out what you can with warm water. If it won’t all come out, then let it dry, then use the Photo Emulsion Remover to reclaim the screen.
The first larger bottle is the Diazo Photo Emulsion. It is used in combination with the small bottle, the Sensitizer. The Sensitizer contains the exact amount needed to be mixed with the larger Photo Emulsion bottle's contents. The second larger bottle that you see in this shot is not utilized until the end of this video (which is not shown here in its entirety) and is used for cleaning the screen--it is Diazo Photo Emulsion Remover.
SpeedballArt And how much water do I add to the sensitizer to dissolve it? That should be indicated somewhere, but both the directions and this video do not tell us, and considering how sensitive this process is, I don't want to take any chances.
That's a good question! Diazo Photo Emulsion has a three-year shelf life if not mixed. Once sensitized it has a shelf life of four weeks at 90º F., eight weeks at 70º F., and four months when refrigerated. If you don't feel like storing mixed unused photo emulsion, check out our Speed Screens Kit which comes with pre-coated screens ready to be exposed.
hey, ive been having problems with speedballs emulsion. Would love some help. So when it comes to washing out the burned out design, the emulsion just breaks down and everything gets washed out. Ive exposed images for 12, 15, 18, 20 minutes, I use a 500w work lamp, I let the emulsion dry for 8-24 hours, I clean, degrease and air dry my screens thoroughly and the emulsion still washes out. PLEASE I NEED HELP SOLVE THIS PROBLEM
Sorry to hear of the struggles! We have some lab-verified exposure times for the emulsion that are available on our site, but those would be specific to our recommended light source, a 250W BBA Photoflood bulb. Changing the light source can add the need for a lot of experimentation to get the times dialed in, so if we can help you source a bulb like that which we've tested/recommend, we're glad to help! Please just contact us at info@speedballart.com. Thanks for using our emulsion!
BrandonTheRula I came across a random post on a forum that a guy had success with a 500w work lamp at 24 inches away for 11 minutes. I tried it at about 23 inches for 12 minutes and got good results
Damian Shawver i could be wrong but i think i remember watching a video and this chick said she does about in minute in direct sunlight. Partially cloudly between 11am and 1pm for best results
Hello! The time for burning depends on the size of the screen, as well as the distance of the light to the screen: www.speedballart.com/wp-content/uploads/2022/01/2021-Screen-Printing-Instructions-Version-5.pdf
Hello! Any UV light will work for photo emulsion, we have one available at select retailers! www.speedballart.com/our-product-lines/speedball-printmaking/speedball-screen-printing/led-lamp/
If printing on paper, we would recommend our Acrylic Screen Printing Ink. If printing on Fabric, we would recommend our Fabric Screen Printing Ink and if printing on dark fabrics, our Opaque Fabric Screen Printing Inks are best. Both types of our Fabric Screen Printing Inks can also be used to print on paper, but not with the professional-grade results that we would expect from the Acrylic Screen Printing Inks line. Paper is a highly personal thing, but we love our Arnhem 1618 Paper or Speedball Printmaking Paper lines for the process!
Great question! You do not need to coat the screen in a dark room when coating the screen initially. After coating, the screen should be stored in a dark area to dry. If you decide to add an additional coat for larger print runs after the initial coat has dried, we recommend doing so in a dark room.
Print on transparencies. If you have an inkjet printer, you can find inkjet transparencies at your local Office Depot and maybe even Walmart. You will want to print two of them and align them perfectly and use clear tape to tape the ends (to keep them stacked together properly).
Hello Katherine! We'd be happy to assist in troubleshooting this with you. You can reach us either by phone at 800-898-7224 Monday-Friday, from 8:30am-4:30pm or at info@speedballart.com. We look forward to hearing from you!
Length of exposure varies depending on the size of screen and the lamp height. If you were to expose an 8"x10" screen with a 250W photo flood bulb positioned at a height of 16" from the screen, exposure time is 7 minutes; 10"x14" screen at 16" lamp height is 8 minutes, and a 12"x16" screen at 18" lamp height is 10mins.
Length of exposure varies depending on the size of screen and the lamp height. If you were to expose an 8"x10" screen with a 250W photo flood bulb positioned at a height of 16" from the screen, exposure time is 7 minutes; 10"x14" screen at 16" lamp height is 8 minutes, and a 12"x16" screen at 18" lamp height is 10mins
I have this Light (500W). What will work with it?
@@testpages724 i hate it when channels dont answer your questions its pointless isnt it
You can go to a hardware store to have the glass cut. It does not have to “fit” in the screen, it can be cut larger, if you expose from the bottom of the screen. It is not necessary, but will produce a crisper image. If you don’t use glass, you can use cellophane or scotch tape to secure the image to the screen.
This can be difficult because once you mix the Sensitizer with water, the shelf life on the Sensitizer begins. If you have some accurate scales, you can remove 1.08 grams of the paste and dissolve in about ¼ oz of water. Then pours this into 104 grams of the Diazo Photo Emulsion. The remaining Sensitizer can be used later.
I remember I did this as a project in high school super fun. I want to try it again.
This just in! Straight from our Speedball Chemists, here's what we were able to find out--Our Photo Emulsion has been widely used in the past for etching copper plates using Ferric Chloride and Nitric acid solutions, but we are not aware of the Nitric Acid:water ratio utilized.
We are using a 250W BBA bulb that is available in our Ultimate Diazo Fabric Screen Printing and Diazo Light Kits.
This beats how diazo printing was done in the 70s...with photo projectors!!!
If you want to speed it up, you could, but use low or no heat on the hair dryer. Heat can cause the emulsion to activate. Make sure you do this in the dark.
Is there a waiting time between when you mix the sensitizer with the photo emulsion and application to the screen? Say 1 hr or more???
Great question, Thomas! Such a great question, in fact, that we're having to consult with our Chemists here to find out the answer for you. We will respond as soon as we hear back from them!
You would not be able to remove all of the Sensitizer from the small bottle without the water. It is a very thick material that would be difficult to remove. The weights in this bottle are measured for a precise mixture and if any of the Sensitizer remains in the bottle, you would likely get a poor exposure and washout of the stencil.
It is just a personal preference. On smaller screens, such as the one featured in the video; some people prefer using a squeegee. Scoop coaters are good for larger screens that have more area to cover, but again it all depends on the artist & their preference.
It appears that the sensitizer was not completely dissolved in the water prior to mixing with the emulsion. Your screen should still work, but you may get some washout in the areas of the black streaks. Try to avoid putting your image over these areas with streaks. If you have some washout in the streak areas, then apply screen filler to block any openings.
Yes, you must dissolve the sensitizer in water and then mix with the photo emulsion.
I purchased the emulsion and sensitizer seperately. The emulsion is 26.4 fl oz. The sensitizer bottle is only 2fl oz. What amount of sensitizer per emulsion? I cant seem to find this anywhere. No instruction came with my order.
What you have is the perfect size for each. If you add water to the 2fl oz bottle and mix per the instructions, it is pre-measured to be ideal for use with the 26.4 fl oz Emulsion. Happy printing!
Hey yall. Buy the glass frame at a thirft store from a used frame! 2$ !
I was taught photo frames are not good.the glass will effect
So where do you get the glass
hey do you people read directions? LOL!! Thanks for the tutorial... Simply easy to do.
the kit is cool because it has all three elements to start and clean my screen. SUPER EASY!! My 9 year old son did it with the tutorial and I made him read the directions as well. :)
You do not need a darkroom to complete the photo emulsion process. Once you have coated your screen you will need to place it in a dark area to dry. However, once it is dry you can expose it to your light source - no darkroom needed!
Is this only for your brand of emulsion?
@@juliatachibana1733 currently, this is our only emulsion system available if you would like to coat your own screens. we do have a new line of pre-coated mesh that will be available very soon!
Thanks!!for your instructions
You are welcome!
Well, it could be done, but there would be some waste and you would need some very accurate scales. The time starts ticking once the sensitizer is dissolved in the water. The correct ratio would be 1.08 grams of the sensitizer paste, dissolved in ½ ounce of water, then mix into 104 grams of the blue diazo sensitizer.
Thanks!!!
Thank you very much for posting this video.
Very ideal tutorial for Photo Emulsion Proocess
thanks because i need this for my school
You are very welcome! Glad that the video is helpful!
You saved my life
this can be a difficult technique! Glad we could help :)
I have this Light (500W). What will work with it?
Is there any paintable resist material that could be painted directly on the bare screen where the unpainted areas will be where the ink will cover?
Based on the detail provided, it sounds like our Screen Filler + Drawing Fluid method is exactly what you're looking to use!
has anyone tried using this emulsion for halftone positives?
can i use stenciling sheets instead?
Im using halogen 500 w for exposure unit,,what will be the accurate exposure time if i used speedball diazo emulsion?
This there so many potential light sources available for a printmaker to choose from, the only exposure times we are able to guarantee are those paired with the recommended light sources (250W BBA photoflood or Speedball LED Lamp) from our offering. Any deviation from those sources would require experimentation and evaluation in your studio specific to your screen size.
If i want to dry my 380 screen outside in the sun with a diazo,emulsion mix, how long should i let ot be exposed to the sun?
Hi ~ ive exposed with the Sun before. There are videos on UA-cam detailing how to if you look into it. I used a test screen with different times marked on the side. 30 seconds, 1 minute etc. As the time went by i covered the screen as to not further expose those.. then wash out and see what time worked best. Proceed by exposing your non test screen with the time that worked best. I used this method to make company shirts with my image!
@@marcelaaaahh1417 good idea.thnx
can u guys put times on these things.........would help, how long do u leave it in a dark place for etc..........
Hello! Thank you so much for taking the time to review this video. We have a more detailed / current version of this tutorial available on our UA-cam Channel (Speedball Art Products) in our "Playlists" section that includes specifics like what you're outlining here. ua-cam.com/video/LAWEseSxRt4/v-deo.html
Hope that helps and thanks again for viewing!
Merci mon artiste moi je fait ça aussi mais par rayons de soleil
Was this all done in a regular room, far away from sun light, or in a dark room?
Thanks so much for tuning into this video! This process does not require being in a dark room to complete, however, we do recommend being away from bright/direct sunlight. Thank you!
Does the image laid on top of the photo emulsion have to be either fully transparent/opaque or can it do gradients/ semi opaque imagery?
The film has to be fully transparent or opaque. The exposed screen can either let the ink through or block the ink completely to create a pattern or design on the printed surface.
@@speedball_art where do i buy the transparent?
Can I ask what is the tool called that you used to spread the emulsion onto the screen? It's not a coating trough which is what I see in most shops
The Speedball® Craft Squeegee is what is used to coat the screen with Photo Emulsion in this video. It is a 70 Durometer, square-edged blade, 9" squeegee that is used for general printing applications. Thank you for your question!
Thank you
how long can you keep a coated screen with emulsion and not exposed. Stored correctly. I've been in the hospital for a couple of months Are they still good?.
First, we're so sorry to read of your time in the hospital and hope that you are fully recovered and feeling great now! To answer your question, we usually would only recommend up to about a month, and even then I would usually expose at a reduced time. Some reaction will take place in the dark overtime. Since it has been more than a month, we would recommend trying to wash out what you can with warm water. If it won’t all come out, then let it dry, then use the Photo Emulsion Remover to reclaim the screen.
do i have to use laserjet printer can i use an inkjet for transparency
Joe Hernandez i use a epson eco tank 2550 and it comes out super dark! they like 300 bucks
why is there only one little bottle and two big bottles ? is that little bottle enough for both of those two big bottles? ? ?
The first larger bottle is the Diazo Photo Emulsion. It is used in combination with the small bottle, the Sensitizer. The Sensitizer contains the exact amount needed to be mixed with the larger Photo Emulsion bottle's contents. The second larger bottle that you see in this shot is not utilized until the end of this video (which is not shown here in its entirety) and is used for cleaning the screen--it is Diazo Photo Emulsion Remover.
SpeedballArt And how much water do I add to the sensitizer to dissolve it? That should be indicated somewhere, but both the directions and this video do not tell us, and considering how sensitive this process is, I don't want to take any chances.
Weird Question #106:
How Much Emulsion Will Be Required For A3/A4 Size Screen ?
see bottles for instructions captain obvious
Could this be used to coat dry plates for photography?
Hi! We do not have any lab-validated information regarding the suitability for use in that particular application. ❤️
Is there any kind of emulsion that last longer than 4 months?
That's a good question! Diazo Photo Emulsion has a three-year shelf life if not mixed. Once sensitized it has a shelf life of four weeks at 90º F., eight weeks at 70º F., and four months when refrigerated. If you don't feel like storing mixed unused photo emulsion, check out our Speed Screens Kit which comes with pre-coated screens ready to be exposed.
What kind of light do i need to do this at home?
We recommend our Speedball LED Lamp, however you can use any UV light with the proper distance from the screen and time exposed!
@@speedball_art price of the speedball lamp?
hey, ive been having problems with speedballs emulsion. Would love some help. So when it comes to washing out the burned out design, the emulsion just breaks down and everything gets washed out. Ive exposed images for 12, 15, 18, 20 minutes, I use a 500w work lamp, I let the emulsion dry for 8-24 hours, I clean, degrease and air dry my screens thoroughly and the emulsion still washes out. PLEASE I NEED HELP SOLVE THIS PROBLEM
Sorry to hear of the struggles! We have some lab-verified exposure times for the emulsion that are available on our site, but those would be specific to our recommended light source, a 250W BBA Photoflood bulb. Changing the light source can add the need for a lot of experimentation to get the times dialed in, so if we can help you source a bulb like that which we've tested/recommend, we're glad to help! Please just contact us at info@speedballart.com. Thanks for using our emulsion!
BrandonTheRula I came across a random post on a forum that a guy had success with a 500w work lamp at 24 inches away for 11 minutes. I tried it at about 23 inches for 12 minutes and got good results
John Goodman alright sweet I’ll give it a try thanks a lot
Use 50W UV LED light exposure time 30 Sec
How long would it take to expose in direct sunlight?
Damian Shawver i could be wrong but i think i remember watching a video and this chick said she does about in minute in direct sunlight. Partially cloudly between 11am and 1pm for best results
How much sensitizer is required for 26.4 oz of emulsion
That is the 2oz bottle Sensitizer containing the 8.85g paste
Must I used speedballs squeegees also?
Any screen printing squeegee will work!
No 😮 Really?!
How long to burn with 50 watt black light
Hello! The time for burning depends on the size of the screen, as well as the distance of the light to the screen: www.speedballart.com/wp-content/uploads/2022/01/2021-Screen-Printing-Instructions-Version-5.pdf
Name of the light used in this proces!!
Hello! Any UV light will work for photo emulsion, we have one available at select retailers!
www.speedballart.com/our-product-lines/speedball-printmaking/speedball-screen-printing/led-lamp/
Keren
Is there anyspecial ink and paper for printing??
If printing on paper, we would recommend our Acrylic Screen Printing Ink. If printing on Fabric, we would recommend our Fabric Screen Printing Ink and if printing on dark fabrics, our Opaque Fabric Screen Printing Inks are best. Both types of our Fabric Screen Printing Inks can also be used to print on paper, but not with the professional-grade results that we would expect from the Acrylic Screen Printing Inks line. Paper is a highly personal thing, but we love our Arnhem 1618 Paper or Speedball Printmaking Paper lines for the process!
How long does it take to dry the coated screen
do i have to do this in the dark?
you do not need to do this in a dark room. we do recommend you avoid direct sunlight, but complete darkness is not required
thanks
where do you get your frames?
The screens and frames in this video are from Speedball Art Products
Do i have to coat the screen in dark room or not necessary ? thanks in advance
Great question! You do not need to coat the screen in a dark room when coating the screen initially. After coating, the screen should be stored in a dark area to dry. If you decide to add an additional coat for larger print runs after the initial coat has dried, we recommend doing so in a dark room.
Thank
SpeedballArt haha, great question eh. xD #Corporate_Sarcasm
HOW LONG DO I REFRIGERATE THE EMOLSION
Refrigeration is only for storage of unused emulsion fluid if you want to save it for later use on another screen.
@@RoninEclipse2G I refrigerated mine, my grandmas funeral will be this coming sunday
What type of paper do I use to print my design on?
Print on transparencies. If you have an inkjet printer, you can find inkjet transparencies at your local Office Depot and maybe even Walmart. You will want to print two of them and align them perfectly and use clear tape to tape the ends (to keep them stacked together properly).
هل يوجد ترجمة؟
can i use this on cmyk printing??
My bad, it was 20x24 screen not 24x 26
Thanks
Our team was able to successfully burn a 20x24 110 monofilament screen with the 250W BBA bulb at a distance of 24 inches for 24 minutes. Good luck!!
SpeedballArt tthanks
My speedball screen dried splotchy.
Hello Katherine! We'd be happy to assist in troubleshooting this with you. You can reach us either by phone at 800-898-7224 Monday-Friday, from 8:30am-4:30pm or at info@speedballart.com. We look forward to hearing from you!
WARNING the squeegee process is way messier than it looks also you'll probably lose a lot more than you think
We feel you! It definitely takes a lot of practice and skill to do it right!
Con éstas prácticas solo se puede perder más dinero del que se gane. No es inversión, es desperdicio.
way too fast
Length of exposure varies depending on the size of screen and the lamp height. If you were to expose an 8"x10" screen with a 250W photo flood bulb positioned at a height of 16" from the screen, exposure time is 7 minutes; 10"x14" screen at 16" lamp height is 8 minutes, and a 12"x16" screen at 18" lamp height is 10mins.
Have you tried using sunlight any?