Reply: No, It's not necessarily suitable with epoxy resin. Chopped strand mat is produced up of shorter 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 while in the mat. https://emilianonjaqg.spintheblog.com/30192077/getting-my-fiberglass-chopped-strand-mat-roll-to-work