CE Fiberglass Epoxy Laminate Rectangular Bar Material Fiberglass Epoxy Laminate Clarity Opaque Color Brown Thickness 0.063 in Overall Length 4 ft Overall Width 4 in Tensile Strength 10 000 psi Maximum Temperature 250 Degrees F Minimum Temperature 0 Degrees F Impact Strength 1.7 ft-lb/in Thickness Tolerance +/-0.01 in Standards UL 94 HB Corrosion and Chemical Resistance Fair Friction Coefficient Not Applicable Density 0.049 lb/cu in Hardness Rockwell M100