tag:blogger.com,1999:blog-2057078046476334455.post7485090453972080472..comments2023-06-25T11:01:48.663-04:00Comments on Builder of Life Size Robots: Head meltingJimhttp://www.blogger.com/profile/04333318035470813141noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-2057078046476334455.post-19100098027049060532008-02-20T20:35:00.000-05:002008-02-20T20:35:00.000-05:00I use to do some work with composites and I seem t...I use to do some work with composites and I seem to remember you'd be okay with epoxy resin over foam, but polyester resin would melt it.<BR/><BR/>Instead of straight resin though, I'd recommend mixing in some "microballoons" which is a light filler that greatly increases the sandability of the resin. You can experiment with different ratios to get the strength you need but still retain the sandability.Mike D.https://www.blogger.com/profile/14550767990062003244noreply@blogger.com