3M polyethylene tape 921 is a transparent, strong and conformable polyethylene film tape that is commonly used in pipe wrapping applications. It features a very high shear, UV resistant acrylic adhesive with excellent holding properties and cold stick. 3M polyethylene tape 921 is strong and effective in pipe wrap applications. This transparent, 5.8 mil (0.15 mm) THK tape is most commonly used to help protect metal and PVC pipes from corrosion in underground and outdoor applications. A strong and conformable polyethylene film tape, it also boasts very high shear and a UV resistant acrylic adhesive system. With its excellent holding properties and cold stick, this tape excels in tough and damp environments. It is resistant to moisture, many alkalis, oils, weathering and abrasion, making this one of 3M most effective tapes at pipe insulation closure. It can also be used as an outdoor masking tape. In our 3M industrial adhesives and tapes division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.