paint thinner in resin
Printed From: the12volt.com
Forum Name: Fiberglass, Fabrication, and Interiors
Forum Discription: Fiberglass Kick Panels, Subwoofer Enclosures, Plexiglas, Fabrics, Materials, Finishes, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=54270
Printed Date: May 01, 2024 at 5:48 AM
Topic: paint thinner in resin
Posted By: placid warrior
Subject: paint thinner in resin
Date Posted: April 20, 2005 at 12:46 AM
Awhile ago i mixed up a batch of resin for a box and threw in some paint thinner cause i didnt have acetone...this resulted in a thick batch of resin (which still hardened up nicely) rather than a thinned out batch...I thought that was wierd, but today i mixed up a batch of resing to coat a mold, and I thought i would try paint thinner again to thicken the resin...it worked and i managed to get one coat at 1/8" -1/4" thick (1/4" on the top) I'm using bondo brand resin, and Im curious if the same thing happens to other brands, cause it seems pretty wierd to me. I havent tried acetone yet to see if it thins it, but has anyone else tried paint thinner and ended up with a thicker batch of resin. The resin thickens with the thinner before i add the hardener so its not reacting funny with the hardener or anything, and it also doesnt dry mega quick, it actually seems to set at a decent rate. I still think its strange though.
Replies:
Posted By: Sobe_Death
Date Posted: April 23, 2005 at 1:40 PM
do you still use the same amount of hardener as if you werent adding the paint thinner?
Posted By: placid warrior
Date Posted: April 25, 2005 at 10:45 PM
no i used more....but it still thickened before i added the hardener so its the thinner thats doing it. I tried a different type of thinner this weekend and it thinned out the resin. The thinner that thickened my resin is a recordsol (whatever that is) type thinner and the stuff that thinned it is a varsol thinner....so whatever the differences may be, whether the age of it or whats in it...its pretty neat.
Posted By: lilbenny
Date Posted: April 27, 2005 at 7:04 PM
whats the point on thinning resin?
Posted By: ravenndude
Date Posted: April 27, 2005 at 8:30 PM
to "help" it soak all the way through material like fleece.
Posted By: oonikfraleyoo
Date Posted: April 28, 2005 at 1:44 PM
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Posted By: placid warrior
Date Posted: April 29, 2005 at 1:57 AM
yea...I like it thinner for the fleece so that it doesnt use as much resin and It saves me a bit...although the bumper I'm working on is purposely thick (added kitty hair to the mixture) and it turned out really great. The thing is with the thicker batch, it didnt soak completely through ..the back was still fuzzy, so i had to add some to the back too.
Posted By: 69burbn
Date Posted: April 29, 2005 at 3:45 AM
You should never put thinner in resin! It makes it extremely brittle and it will attack the fiber/ matting over time! The more thinner the faster the attack! Your effictively making "playdoe" when you add thinner. It will dry fine, then shatter latter on because it destoyed the fiber/ matting! If you want thinner resin use surfboard sandable resin. It's cheap and easy to get. Go to any board shop!
Posted By: ravenndude
Date Posted: April 29, 2005 at 10:23 AM
69burbn wrote:
You should never put thinner in resin! It makes it extremely brittle and it will attack the fiber/ matting over time! The more thinner the faster the attack! Your effictively making "playdoe" when you add thinner. It will dry fine, then shatter latter on because it destoyed the fiber/ matting! If you want thinner resin use surfboard sandable resin. It's cheap and easy to get. Go to any board shop!
well that's goo to know!
Posted By: placid warrior
Date Posted: April 29, 2005 at 11:09 AM
Yes..that is very good to know. Thankfully i never used the stuff on a sub box or anything (the hood scoop i used it on is just for a mold.)
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