Constructed of water-resistant polyethylene film laminated to cloth with a rubber adhesive, 3M Heavy Duty Duct Tape 3939 resists curling and tears off the roll cleanly for easy application in general indoor MRO/construction environments. The rubber adhesive sticks instantly and provides a tight moisture-resistant seal in many containment situations, while low tack roll edges stay cleaner. Designed for heavy-duty use, this conformable tape allows for a wide range of permanent and temporary solutions, including patching, bundling, reinforcing, tabbing, taping/splicing insulation, capping pipe, securing conduit ends, marking, labeling, temporary repairs and more. Can be used at temperatures as high as 200F for up to 30 minutes.