Polycarbonate is clear for applications that require seeing through the and has excellent resistance to impact, shock, and strikes. This Product is Manufactured in China. Thickness: 1/4"; Thickness Tolerance: (-0.018" - +0"); Width: 12"; Width Tolerance: (-0.25" - +0.25"); Length: 36"; Length Tolerance: (-1" - +1"). Color: Clear; Clarity: Clear; Tensile Strength: 9,700 psi; Tensile Strength Rating: Good; Impact Strength: 14.0 ft. - lbs./in.; Impact Strength Rating: Excellent. Coefficient of Fricton: 0.53; Friction Rating: Not Slippery; Water Absorption: 0.0013; Water Absorption Rating: Good; Hardness: Rockwell R120. Density: 0.043 lbs / cu. in.; Temperature Range: -40° to 240° F; Specifications Met: UL 94 V-2.