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Thread: How to re-use your epoxy paintbrush

  1. #1
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    Default How to re-use your epoxy paintbrush

    I think I made a discovery.

    please let me know if anyone knew about this before

    in order to avoid throwing away your paintbrush after the epoxy work or to avoid using expensive chemicals to clean it you can do a very simple, easy and fast way to stop the curing process.
    i made a short video that is posted on my youtube page illustrating the method:


    the paintbrush in this video was kept one month in the freezer for testing and I used it already 3 times. it's soo cool!

    Thanks for your thoughts on this.
    Wulkie

  2. #2
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    Default Re: How to re-use your epoxy paintbrush

    Yes, that works but....If you don't wrap and/or encase it in several layers of plastic, the smell will permeate other stuff in the freezer. Some epoxies and solvents are worse than others but upsetting SWIMBO is not a good path.
    Tom L

  3. #3
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    Default Re: How to re-use your epoxy paintbrush

    The epoxy I use can be cleaned from the brush with vinegar and warm soapy water.
    The definition of stupid has got to be the belief that more guns will negate the bloodshed done with guns.

  4. #4
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    Default Re: How to re-use your epoxy paintbrush

    If i'm using epoxy several times per week, I use the lidded plastic tub that dishwasher pods come in with a couple of inches of acetone to store epoxy brushes between sessions.
    Before re-using a brush, I shake the acetone out in the trash barrel. The lid retards evaporation. Eventially the acetone gets funky and it goes into my waste solvent jug.

  5. #5
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    Default Re: How to re-use your epoxy paintbrush

    Yup, brushes, rollers unused portions of epoxy, 5200 all go in the "garage Freezer" No smells so far. The unused mixes are good for when you need just a touch of epoxy net or thickened. I usually have a yogurt cup of each in my freezer.

  6. #6
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    Default Re: How to re-use your epoxy paintbrush

    Jim, when I'm doing a large project, that runs over several days or weeks with epoxied tools, I do exactly like you. Its the easiest and cleanest method. When using vinegar, I blow off the brush with the air compressor before its used again. Gets it cleaner than just shaking and not necessary to wash in soapy water.
    Tom L

  7. #7
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    Default Re: How to re-use your epoxy paintbrush

    What do you do with the waste thinner jug?
    The cure for everything is saltwater - sweat, tears, or the sea.

  8. #8
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    Default Re: How to re-use your epoxy paintbrush

    Vinegar will dissolve the hardner, leaving the epoxy resin behind.

    I use three brushes on rotation: one in use; one soaking in vinegar; one drying.

    Easy and cheap, and no need to contaminate the freezer.

    Rex.
    My boats: http://www.blokeslens.com/tag/my-boats (both wooden and -- cough, cough -- fibreglass)

  9. #9
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    Default Re: How to re-use your epoxy paintbrush

    Guess I'm a profligate slob, I just throw the chip brushes away.
    But, it would be nice if West System made a micro dispenser system to mix up teaspoon size batches

  10. #10
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    Default Re: How to re-use your epoxy paintbrush

    Quote Originally Posted by David W Pratt View Post
    Guess I'm a profligate slob, I just throw the chip brushes away.
    I used to throw brushes away after one use, but in these more environmentally conscious days, I like to reuse/recycle as much as possible.

    Rex.
    My boats: http://www.blokeslens.com/tag/my-boats (both wooden and -- cough, cough -- fibreglass)

  11. #11
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    Default Re: How to re-use your epoxy paintbrush

    I've been putting my Jen foam varnish brushes in the freezer sealed in a zip lock baggie between coats. That works well, too.

  12. #12
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    Default Re: How to re-use your epoxy paintbrush

    Quote Originally Posted by David W Pratt View Post
    Guess I'm a profligate slob, I just throw the chip brushes away.
    But, it would be nice if West System made a micro dispenser system to mix up teaspoon size batches
    Here is how I solved that problem. I filled two small containers with hardener in one and resin in the other. From my local pharmacy I got two medicine dispensing syringes (free). No needles, just the syringes. In this way I can make very small doses of epoxy. Smaller than a teaspoon if needed. In time the syringes need to be replaced as they get grungy after a few dozen uses. No biggie.

  13. #13
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    Default Re: How to re-use your epoxy paintbrush

    Don't put it on a freezer in which you store food. It will even penetrate hot dogs and guess what THEY smell like when you cook them on the grill.... What would you expect when you leave the epoxy/carbon fiber storage freezer unlocked in the same workroom a bunch of Mechanical Engineers share.

    The good news is it won't penetrate the glass in bottled beer in the fridge!

  14. #14
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    Default Re: How to re-use your epoxy paintbrush

    Squeegee = end of problem epoxy is not paint so my logic is flawless
    let the quoting begin ....
    Last edited by DeniseO30; 06-14-2018 at 02:20 PM.
    Denise, Bristol PA, Oday30, Anchor Yacht Club, On tidal Delaware River. my current project; http://forum.woodenboat.com/showthre...0-Ducker-Resto

  15. #15
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    Default Re: How to re-use your epoxy paintbrush

    When I finish an epoxy job, I just dip my paintbrush into a cup with acetone, and leave it there... I once had one in for a week or so, and it was just as soft when I took it out. Of course, if you want to keep it for a while, best to cover the cup, so the acetone won't evaporate too fast. I re-use the same acetone for at least 10 jobs, depending on the size of the brush.

    Anything wrong with this method? I'm surprised no one mentioned it so far.

  16. #16
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    Default Re: How to re-use your epoxy paintbrush

    I clean my Purdy with denatured alcohol. The solids mostly settle out and solidify, so I reuse it and only use a bit of fresh alcohol for the final rinse.

  17. #17
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    Default Re: How to re-use your epoxy paintbrush

    Quote Originally Posted by David W Pratt View Post
    Guess I'm a profligate slob, I just throw the chip brushes away.
    But, it would be nice if West System made a micro dispenser system to mix up teaspoon size batches
    I asked my vetinarian to save some of the syringes they use for oral meds. Cleaned up and capped I keep one with resin and one with hardener. They're calibrated nicely, so it's easy to mix up tiny batches.

  18. #18
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    Default Re: How to re-use your epoxy paintbrush

    Quote Originally Posted by DeniseO30 View Post
    let the quoting begin ....
    OK, quoting has begun.

    I use edible epoxy. I prefer peanut butter-flavor but banana is good too. No waste. No brush cleaning needed.

  19. #19
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    Default Re: How to re-use your epoxy paintbrush

    Professional use a 10 litre paint bucket with a lid with a few litres of acetone in it, at the end of the day all epoxy tools get chucked in there. Everything is clean the next day, spatulas, spreaders, trowels, brushes... Generally I avoid putting epoxy and food together, too much contamination risk but a separate freezer would be ok.
    whatever rocks your boat

  20. #20
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    Default Re: How to re-use your epoxy paintbrush

    Quote Originally Posted by Hugh MacD View Post
    I asked my vetinarian to save some of the syringes they use for oral meds. Cleaned up and capped I keep one with resin and one with hardener. They're calibrated nicely, so it's easy to mix up tiny batches.
    Get electronic gram scales, you can measure very accurately and avoid messy syringes.
    whatever rocks your boat

  21. #21
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    Default Re: How to re-use your epoxy paintbrush

    just chuck the chip brushes, don't be so cheap!
    whatever rocks your boat

  22. #22
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    Default Re: How to re-use your epoxy paintbrush

    Never discard those disposable brushes. They can always be used in a beautiful artistic sculpture.
    .
    .

  23. #23
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    Default Re: How to re-use your epoxy paintbrush

    I always pull the round handles off my old foam brushes and use 'em for light duty pegs, plugs, dowels, etc. Haven't found a use for the chip brush handles yet, but....

  24. #24
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    Default Re: How to re-use your epoxy paintbrush

    THANK YOU! Thank you! Thank you!

    For making this thread. I have used a lot of epoxy and poly over the years. I know poly is different than poxy. I've mostly done repair jobs which means the brushes may go years without being used. I usually toss them. I'm planning some projects that will require gallons of epoxy over months to be applied. Now I can save some money and reuse brushes and such. So thankful to have a different approach to handling disposables or what I once considered one-use disposables.

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