12mm high-impact strength pe 300 polyethylene sheet whosesaler HDPE (High-Density Polyethylene), Natural Black HDPE 300 Sheet is an extremely temporarytile product . with outstanding properties and good chemical resistance for a wide variety of applications, at very mpetitive st. HDPE has a low efficient of friction and can be easily cut, machined, welded, and thermoformed for easy fabrication.