For splicing applications requiring quick stick and an aggressive, permanent hold, use 3M™ Polyester Film Tape 850. Used in a variety of applications, including web processing, label protection, and marking. This tape is available in various colours, as well as a transparent.3M Polyester Film Tape 850 is generally used for splicing and web applications. The backing is a thin, high-strength polyester which is abrasion resistant to help reduce splice failures while resisting breakdowns during rough handling and web processing. Coated with an aggressive, pressure-sensitive acrylic adhesive, this tape grabs on contact and holds securely. It meets low-caliper requirements to ensure it won't interfere with most machinery. Dispensable and appropriate for outdoor use.