HDPE has excellent moisture-resistance and does not expand in response to water exposure. Stronger and stiffer than LDPE. This Product is Manufactured in China. Thickness: 1/2"; Thickness Tolerance: (-0" - +0.008"); Width: 1-1/2"; Width Tolerance: (-0.01" - +0.01"); Length: 12"; Length Tolerance: (-1" - +1"). Color: White; Clarity: Opaque; Tensile Strength: 3,500 psi; Tensile Strength Rating: Poor; Impact Strength: 3.0 ft. - lbs./in.; Impact Strength Rating: Good. Coefficient of Fricton: 0.2; Friction Rating: Very Slippery; Water Absorption: 0.0001; Water Absorption Rating: Excellent; Hardness: 60D. Density: 0.035 lbs / cu. in.; Temperature Range: -70° to 180° F; Specifications Met: FDA, UL 94 HB.