6 Mil Dura-Skrim reinforced plastic sheeting is a high strength polyethylene film reinforced with a layer of polyester scrim to prevent ripping and tearing. Includes features such as carbon black and UV stabilizers to increase longevity for short to mid-term outdoor cover applications that require minimal heat buildup. 6 Mil Dura-Skrim is a certified vapor retarder passing ASTM E 96 standards with a 0.042 perm rating.