G-10/FR4 Fiberglass Epoxy Laminate Sheet, Material Fiberglass Epoxy Laminate, Color Yellow, Clarity Opaque, Overall Length 12 in, Tensile Strength 38,000 psi, Maximum Temperature 280 Degrees F, Minimum Temperature 0 Degrees F, Density 0.072 lb/cu in, Standards UL 94 V-0, Impact Strength 14 ft-lb/in, Hardness Rating Extra Hard, Friction Coefficient Not Applicable, Corrosion and Chemical Resistance Good, Friction Rating Not Rated, Grade G-10/FR4, Hardness Rockwell M110