Solution: No, It is far from compatible with epoxy resin. Chopped strand mat is designed up of brief strands of fiberglass that happen to be held with each other by a styrene binder. The styrene from polyester and vinyl ester resin is required to dissolve the binder within the mat. https://stephenojzpe.tinyblogging.com/getting-my-fiberglass-chopped-strand-mat-roll-to-work-73583944