3M 850 Silver Polyester Film Tape 1 in 72 yd

Silver Polyester Film Tape for Electrical Work

This 3M 850 tape uses a polyester backing with an acrylic adhesive on one side. The silver colour provides a clear visual reference during installation and inspection. It is designed for general-purpose electrical tasks where a durable, heat-resistant film tape is required. The roll delivers 72 yards of continuous length for extended use.

Suited for Electricians Needing Heat Resistance

The tape performs between -60 °F and 300 °F, making it reliable in cold environments and high-temperature applications. It offers a tensile strength of 28 lb-in and an adhesive strength of 30 oz/in for secure bonding. Buyers who need a tape rated for temperatures above 300 °F or a wider roll should look at alternative products. This tape is not intended for structural repairs or load-bearing joints.

The 1.9 mil Thickness Determines Conformability

At 1.9 mil thick, the tape conforms well to irregular surfaces and tight bends without adding bulk. Thicker tapes may resist abrasion better but will not wrap as easily around small-diameter wires. Thinner films may tear during application in demanding conditions. This thickness is the key specification for deciding if the tape matches the specific wrapping and insulating task.