Response: No, it is not compatible with epoxy resin. Chopped strand mat is designed up of short strands of fiberglass which have been held collectively by a styrene binder. The styrene from polyester and vinyl ester resin is necessary to dissolve the binder while in the mat. Body weight:3oz per https://fiberglasschoppedstrandma90112.bleepblogs.com/30312888/the-smart-trick-of-fiberglass-chopped-strand-mat-roll-that-nobody-is-discussing