Oct 27, 2016 · HDPE has good insulation properties and is easy to weld. The operating temperature is from -58 °F to +194 °F. HDPE is a st effective material for both indoor and outdoor applications. Material : High Density Polyethylene Shape: Sheet Thickness: 1 inch Width: 12 inches Length: 24 inches Finish: Smooth Videos Page of 0:30 Looit for specific info?