Has anyone try to use west system 404 filler in vinyl ester resin? I’ve read 404 is used with epoxy but nothing about in vinyl ester, I found a vinyl ester resin that can take heat up to 150C but cannot find any vinyl ester gelcoat that will take that temperature therefore I want to make my own vinyl ester gelcoat for tooling purpose.
It’ll work fine, it’s just calcium metasilicate and fumed silica. Standard stuff, works with all resins.