What do you thin epoxy with to spray fiber glass cloth .?
Depends on what kind of strength you need in the end, pot life/cure time, shrinkage, etc. Common thinners are acetone and denatured alcohol. You should probably consult the maker of the epoxy you’re using for recommendations. Here’s a page from West Systems about the pros and cons of thinning epoxy: http://www.seqair.com/skunkworks/Glues/W…