Fusa-Fab High temperature F and H Class semi cured, low volatile, polyester resin impregnated fabrics. They are available in a variety of thicknesses, with and without a polyethylene film interliner. The suffix P is used to designate products supplied without an interliner - Excellent flexibility. Excellent abrasion resistance. Excellent resistance to refrigerants. Applications through 180 °C. Tensile strength of 300 lb/Inch (Before Cure), 248 MPa (After Cure).