Shape: Sheet; Material: Polycarbonate; Grade: Scratch & UV Resistant; Backing Type: Plain. Thickness: 1/2"; Thickness Tolerance: (-0.004" - +0.004"); Width: 48"; Width Tolerance: (-0.25" - +0.25"); Length: 96"; 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. A hard clear coating provides protection against abrasion, chemicals, sunlight and weather.