GlasGuard Grade 1130 is a fiberglass-reinforced thermoset polymer composite system which is available as sheet stock or in a variety of pultruded shapes. Grade 1130 possesses flame resistance, corrosion resistance, weatherability, and dielectric properties. This material meets NEMA criteria for grade GPO-3. Grade 1130 was developed to meet the requirements of the NYC Transit Authority. It has been pultruded into channel shaped covers for the electrified third rail and molded into flat panels for both a sign material and switchgear components.