3M Scotchrap tape 50 is a premium-grade, 10 Mil thick, all-weather, PVC backing tape. It withstands temperatures of -55 to 176 °F (-48 to 80 °C). This high-tack adhesive tape offers resistance to corrosion, impact, abrasion and puncture, making it suitable for use on metal piping systems, conduits and fittings both above and below ground. - 3M Scotchrap tape 50 is tough, polyvinyl chloride based tapes with special high tack adhesives formulated to resist corrosion of metal piping systems above and below ground, fittings and joints on all mill-coated pipe and electrical conduit systems.