Where tensile strength is a requirement, you can't do better than a glass cloth backing. This type of backing can have tensile properities seven times high than typical polyester.
White, 7.3 mil (0.19 mm) glass cloth tape film tape, printed version with acrylic adhesive. Used for sealing seams on aircraft ducting and cargo area panels.
White, 7.5 mil (0.14 mm) glass cloth tape with silicone adhesive. High temperature resistance, high adhesion, and a very strong, abrasion resistant backing. Excellent choice for masking protection in thermal spray operations.
Brown, 5.3 mil (0.134 mm) glass cloth tape impregnated with PTFE and silicone adhesive. 5451 is a heat seal tape. Provides a high tempeature release surface for protection and insulation such as the bar underneath where the hot wire seals plastic film.
Brown, 8.3 mil (0.21 mm) glass cloth tape impregnated with PTFE and silicone adhesive. 5453 is a heat seal tape. Provides a high tempeature release surface for protection and insulation such as the bar underneath where the hot wire seals plastic film.
White, 8.3 mil (0.20 mm) glass cloth tape with thermosetable rubber-resin adhesive. For many applicaitons requiring high adhesion and a very strong comformable backing.
White, 8.3 mil (0.20 mm) glass cloth tape with thermosetable rubber-resin adhesive. 3650 tape is a poly-linered version of 365 tape. Used for many applicaitons requiring high adhesion and a very strong comformable backing.