Reply: No, it is not suitable with epoxy resin. Chopped strand mat is made up of limited strands of fiberglass which are held alongside one another by a styrene binder. The styrene from polyester and vinyl ester resin is needed to dissolve the binder from the mat. Compatible with polyester https://fiberglass-chopped-strand02456.laowaiblog.com/29167509/fiberglass-chopped-strand-mat-roll-things-to-know-before-you-buy