3M Scotchrap Vinyl Corrosion Protection Tape 51 is a 20-mil thick, all-weather, PVC-based protective tape with a special high-tack adhesive formulated to resist corrosion of metal piping systems above and below ground, and fittings and joints on all mill-coated pipe and electrical conduit systems. This tape is resistant to exposure to outdoor weathering, including sunlight, and to impact, abrasion, punctures and tears.