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Old 10-18-2019, 07:21 PM   #1
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Default cleaning dried paint

Heard from a painter dot 3 brake fluid will remove dried latex from needles, spray tips and guards without harming the plastic. I didn't believe him but sure enough let them soak an hour and paint comes right off with a soft brush. all the paint particles float to the bottom so you can filter and reuse the fluid indefinitely.


Anyone else got unconventional cleaners they use?

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Old 10-18-2019, 07:28 PM   #2
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Heard from a painter dot 3 brake fluid will remove dried latex from needles, spray tips and guards without harming the plastic. I didn't believe him but sure enough let them soak an hour and paint comes right off with a soft brush. all the paint particles float to the bottom so you can filter and reuse the fluid indefinitely.


Anyone else got unconventional cleaners they use?
DOT 3? I'll try that tomorrow...at brake time...
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Old 10-18-2019, 07:38 PM   #3
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DOT 3? I'll try that tomorrow...at brake time...

yes Dot3. the real cheap $3/qt stuff.
honestly works better than any 'stripper' product I have tried and its not super toxic to work with.

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Old 10-18-2019, 10:51 PM   #4
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Will just soap and water then remove the fluid residue?
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Old 10-19-2019, 01:03 AM   #5
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Will just soap and water then remove the fluid residue?
Yes it's mainly ethelyne glycol based as I understand. Not sure it's good to put down the drain though?
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Old 10-19-2019, 01:15 AM   #6
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DOT 3? I'll try that tomorrow...at brake time...
Oh, Jesus give me a brake!
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Old 10-19-2019, 01:41 AM   #7
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Oh, Jesus give me a brake!
Be here all week folks. Try the veal! Baddabing!
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Old 10-19-2019, 07:09 PM   #8
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Gonna have to try that one. Cheap. Wonder if older stuff thats been open awhile works as well as new. It's hydroscopic so it would be nice to find a use for the older stuff out in the garage that isn't safe for brake use anymore.

Plus most of the automotive stores accept it for recycling.

Edit: quick Google shows dot 3 & 4 & 5.1 fluids are glycol ethers which is what we know as cellosolve.

Considering butyl cellosolve (butyl glycol ether) is used to retard most waterborne lacquers and some acrylic paints.

Now knowing what brake fluid is made of doesn't surprise me as glycol ether is the recommendation for cleaning equipment in tds's for say kem aqua plus.

Small world we live in.

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Old 10-19-2019, 07:32 PM   #9
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I left some racx and racv guards and tips in there 48 hours so far hasn't thouched the plastic. paint comes right off using a plastic gun cleaning brush. paint doesnt mix into the fluid either, kinda freaky this works as well as it does...
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Old 10-19-2019, 08:49 PM   #10
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There is a reason its always mentioned in service manuals and from mechanic friends to be careful and avoid getting brake fluid on a car's paint.

I know when I was a teen I painted my brake calipers with the high temp paint and after the first bleed half of the red paint had been stripped off below the bleeder valve. Haha.
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Old 10-19-2019, 09:16 PM   #11
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I used the Dot 3 brake fluid on a brush and it worked great! But, instead of stopping after 8 hours of brushing, I stopped in two!
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Old 10-20-2019, 12:20 AM   #12
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I used the Dot 3 brake fluid on a brush and it worked great! But, instead of stopping after 8 hours of brushing, I stopped in two!

Thin film of paint really loosens up in about an hour. Really thick stuff swelled up and loosened up after an overnight soak.
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Old 10-21-2019, 12:40 AM   #13
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I wish they made something to clean dried paint off of cotton clothes. I have a lot of clothes ruined by a mere drop of paint.
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Old 10-21-2019, 01:39 AM   #14
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I used the Dot 3 brake fluid on a brush and it worked great! But, instead of stopping after 8 hours of brushing, I stopped in two!
Ah, but the question is, did you stop one toke over of the line?
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Old 10-21-2019, 01:45 AM   #15
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I wish they made something to clean dried paint off of cotton clothes. I have a lot of clothes ruined by a mere drop of paint.
It's called lye.
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Old 10-21-2019, 10:22 AM   #16
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It's called lye.
Do you know a good ratio? I did a pound of lye in about 10 gallons of water, and left my clothes in overnight, and it didnt do a thing.
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Old 10-21-2019, 10:32 AM   #17
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Do you know a good ratio? I did a pound of lye in about 10 gallons of water, and left my clothes in overnight, and it didnt do a thing.
Maybe try boiling in that same mixture. Just a thought, as I've never tried it. I'd do it outside, I have no idea what type of caustic fumes may result. You might end up with clothes suitable for the kids, as I'm not sure about shrinkage. And as all things uncertain, be sure to film the process....you may end up with some hilarious footage that could make you a Youtube star!
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Old 10-21-2019, 02:19 PM   #18
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Do you know a good ratio? I did a pound of lye in about 10 gallons of water, and left my clothes in overnight, and it didnt do a thing.
I don't know a proper ratio, but lye is what I heard they used at the dropcloth laundry.
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Old 10-21-2019, 02:38 PM   #19
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I don't know a proper ratio, but lye is what I heard they used at the dropcloth laundry.
And they probably apply plenty of steam.
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Old 10-21-2019, 03:21 PM   #20
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And they probably apply plenty of steam.
No doubt, they had these huge industrial washing machines and dryers as one would imagine if your business was laundering drops.
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