PTFE is the most slippery and wear-resistant. It also has excellent resistance to extreme temperatures and chemicals. This Product is Manufactured in China. Thickness: 0.01"; Width: 12"; Width Tolerance: (-0.25" - +0.25"); Length: 2 ft.; Length Tolerance: (-1" - +1"). Color: White; Clarity: Opaque; Tensile Strength: 3,000 psi; Tensile Strength Rating: Poor; Impact Strength: 3.5 ft. - lbs./in.; Impact Strength Rating: Good. Coefficient of Fricton: 0.07; Friction Rating: Very Slippery; Water Absorption: 0.0001; Water Absorption Rating: Excellent. Density: 0.078 lbs / cu. in.; Temperature Range: -290° to 500° F; Specifications Met: FDA, UL 94 V-0.