G-10 Fiberglass Epoxy Laminate Sheet, Material Fiberglass Epoxy Laminate, Color Yellow, Clarity Opaque, Thickness 1/2 in, Overall Length 12 in, Overall Width 12 in, Tensile Strength 40,000 psi, Maximum Temperature 270 Degrees F, Minimum Temperature 0 Degrees F, Corrosion and Chemical Resistance Good, Hardness Rockwell M110, Thickness Tolerance +0.044/-0.041 in, Impact Strength 14 ft-lb/in, Standards UL 94 HB, Friction Rating Not Rated, Grade G-10, Grouping Sheet Stock, Hardness Rating Extra Hard