fiberglass roving is a single end "E glass" fiberglass roving. It consists of continuous filaments free from catenary and treated with proprietary FGI sizing chemistry. Sizings are available for multi-resin compatibility (polyester, vinyl ester, epoxy). Also, resin specific sizings are designed for vinyl ester as well as anhydride and amine cured epoxies. Nominal sizing content is 0.45%.