Brush Cleaning | Removing and Oil Based Finish
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- Опубліковано 2 лис 2019
- How to remove oil based finishes from your brush.
Oil based finishes are great for consistent and durable finishes but can be difficult to remove from your brushes. In this episode we tackle removing an oil based stain & poly from one of my brushes.
The basic steps are as follows:
1. Remove excess finish from the brush using a paper towel
2. Fill a glass jar with mineral spirits just deep enough to cover the coated
part of the brush
3. Swirl the brush around to fully soak in the mineral spirits and then let sit
over night
4. The following morning, swirl the brush some more and then use a paper
towel to clean it up
5. For best results, transfer the dirty mineral spirits into waste container and
repeat steps 2-4 though an overnight wait is not necessary
6. When your paper towel comes out clean, the brush is clean as well.
7. Let the excess mineral spirits on the brush volatilize for a day and then
exercise the bristles to free them
If you have any questions, please leave them in the comments section below.
***Dispose of used mineral spirits according to local laws. Your garbage company or city/county/state websites should have guidance for where to dispose.
Josh
Northwest Craftsman
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Products Used in this Episode*
Detail Brush: amzn.to/34xnPYo
Mineral Spirits: Local Hardware Store
Glass Jar: Anything
Support:
Website: NorthwestCraftsman.com
Apparel: NorthwestCraftsman.com/shop/apparel/8
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Total Cost
$10.00 - Mineral Spirits
Connect
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Facebook: / northwestcraftsman
Email: See contact section
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Audio Credits:
Morning Manodlin by Chris Haugen (UA-cam Audio Library)
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**Link above is an affiliate link which provides you a discount of 20% on your first purchase and Northwest Craftsman a rebate on our subscription.
Great points on how to clean stain off a stain brush.
Thanks Michael! I’m glad you found it useful.
Super helpful!
Thanks! I’m glad you found it useful!
Thank you for this. Very helpful.
Glad you found it helpful!
After your brush is cleaned can you use it again on a different type of paint, like acrylic or will carry some oily residue to the paint?
If fully cleaned, the brush should be good for any use afterwards! Make sure to clean all the way up near where the bristles are mounted and if possible not to get paint or finish up there. It’s notoriously difficult to clean.
Great video. But can you use paint thinner in place of mineral spirits?
You should be able to use paint thinner. What I’m seeing is that they’re the same thing, except for level of refinement. Paint thinner is less refined so it’s smellier and contains other solvents.
Here’s a pretty good article from The Spruce
www.thespruce.com/mineral-spirits-vs-paint-thinner-difference-4764584
@@NorthwestCraftsman thanks. I think I'm already doomed with these brushes because they're already hardened. I cleaned them after using poly but I didn't keep it moist it let it soak. Do you keep yours soaking in MS in-between uses?
@@peterlabat1527 yea, those brushes may be shot. You can go hard on them and let them soak to see if it’ll soften but the bristles won’t likely recover fully. I’d recommend getting some new ones and using these for less critical jobs.
As for storing mine, I have a newer method that I found for oil based finishes that I believe I show in my farmhouse console table finish video (ua-cam.com/video/bkeH3Bn2kVM/v-deo.html)
I try to store all of my brushes clean unless I’m going to use it again within about 12 hours, then I’ll wrap it in Saran Wrap to prevent it from drying. However, this is a very temporary solution that doesn’t work long term.
How do you get rid of the mineral spirits after cleaning your brush. Were do you get rid of it?
Great question! Unfortunately the answer varies widely depending on where you live. Check with your local waste/trash management group or county dump because they are usually very good about publishing how to get rid of these harsher chemicals.
I used stain remover let the brush sit for a few minutes but it dried up all stiff did I not leave it in long enough??
Great question! There are a few possibilities. I generally have to dip and rinse a few times in order to fully clean my brushes but they do almost always dry a little stiff. Once I work the bristles with my hand again, they’re soft as can be. If you do this and they still feel funky, I’d rinse it in the stain remover some more.
do you not use soap after you have cleaned with mineral spirits?
I had not heard of using soap and water after the mineral spirits. Have you found that helps to take the residue out of the brush?
Can you put oil brush for reuse in Ziploc bag and freezer?
Depends on the timeframe with which you expect to use it again. The goal behind the ziploc bag and freezer, even separately, is to slow down the evaporation of the volatiles in the paint, thereby leaving the paint in a paintable state. I’ve left my brush wrapped in Saran for up to a couple hours at a time with no issue but haven’t tried longer.
How do dispose of the dirty water once you’re done?
A lot of local waste centers will accept paint and paint supplies. Check your local regulations for how to dispose of used solvents.
How long did you leave the brush with the stain on in?
I let the brush sit overnight in the mineral spirits and then did another quick swirl and rinse with fresh mineral spirits the following day.
@@NorthwestCraftsman But what about before you started cleaning the brush? Did the staining, wrapped it with plastic wrap, it sat, then cleaned. How long was it in that sitting stage?
Gotcha! I was debating if that was the question you were asking. I had the brush in and out of the Saran Wrap for 3 days while I was staining. After unwrapping it, I immediately let it soak. Total time in the air was likely less than an hour including the amount of time I was using it.
Thank you. Now how do I dispose the mineral spirits? Does it evaporate?
It will evaporate eventually but the best option is to check with your local waste disposal company or paint supplier as to what the regulations are in your area. It varies widely across the US and world as to how you should dispose of these solvents. Some localities will dispose of it for free if it’s in the right container and others have a charge for the disposal.
Do you use same method to clean foam brushes?
Great question, unfortunately not, or not likely. Most foam brushes will be eaten by lacquer thinner or other volatile cleaners. For me, most foam brushes are treated as disposable
My idea, being that it takes most of the work and solvents to get the last ten percent of oil, how about flushing it with vegetable oil and then lots of dish detergent.
That may work, my concern would be the volume of vegetable oil necessary to displace the oil in the brush and then how long it would take with dawn and water to dry after washing. However, haven’t tried it! Let me know if you do, I’m curious to hear how it goes.
I’ve also actually learned a better method since this point which uses 3 containers sequentially and it works beautifully for quickly cleaning your brush. My Farmhouse Console Table Finishing video at about 10 minutes shows it (ua-cam.com/video/bkeH3Bn2kVM/v-deo.html)
You could of did it with half the amount of spirits
You’re totally right, it doesn’t take hardly anything to break down the finish.
I appreciate the thoroughness and quality of this video, but it's disappointing to see good food canning/storage jars used for this instead of reusing empty, clean pasta or salsa jars which will hopefully be recycled anyway.
Totally agree with you! Using something like that would be much better than a canning jar. Both functional, but the other uses of the jar are more valuable 😂