Method to prevent epoxy from sticking to a surface when molding? - Car Audio | DiyMobileAudio.com | Car Stereo Forum

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Old 10-05-2008   #1
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Default Method to prevent epoxy from sticking to a surface when molding?

How do you prevent the epoxy from sticking to a surface once it dries? I heard something about aluminum foil?

Thanks

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Default Re: Method to prevent epoxy from sticking to a surface when molding?

I use Partall #10 film release agent

http://www.rexco-usa.com/part2.htm

Apply at least 6 to 8 coats of it on the surface with a brush. It dry fast.

Incredible product.
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Old 10-10-2008   #3
 
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Default Re: Method to prevent epoxy from sticking to a surface when molding?

Quote:
Originally Posted by braves6117 View Post
How do you prevent the epoxy from sticking to a surface once it dries? I heard something about aluminum foil?

Thanks
Aluminum foil will work, but it will be stuck to the epoxy..... If you're trying to make a mold, best thing I've found is to use several coats of johnsons paste wax. 6-8 coats, buffing off excess between each and after last one.
this will ensure that there are no visable defects in the surface coat left by the release agent. You can use Part-all or pva as it's genericaly known as a barrier. PVA is generally used only as a last little bit of insurance that the parts don't stick and also as protection measure for the tools. Best results come from spraying it in one or 2 very fine mist coats after the part has ben suitably waxed. Brushing on multiple coats will work but it will also leave lots of brush texture in the surface of the mold which you probably want to avoid.

hth
todd
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