Talk Composites - The Forum for Advanced Composites

Original part partially stuck in mold

http://www.talkcomposites.com/Topic36133.aspx

By Dcchris311 - 4/2/2020 12:58:24 PM

Hello,

So I attempted to create mold of a engine cover. I cleaned it with IPA and added 3 coats of Partall wax, I then coated the part with Fibreglast tooling gel coat and finally with fiberglass reinforcement with epoxy resin. When I went to remove the plug, it partially came out with ease but certain areas where stuck to the mold an weren't coming out without break the mold( which I did). I'm going to try again this weekend but with 8 coats of wax and to layers of PVA. I also read that gel coat is the worst choice and that I should be using a epoxy surface coat instead of a gelcoat. I've read a few article, seen videos where they swear by gel coats. Can anyone chime in and drop some knowledge? Throwing away material is starting to get expensive. Thanks in advance!

By Dcchris311 - 4/2/2020 1:02:12 PM

I do have epoxy resin that I will be using for parts, could I use that as a surface coat?