Our extruded film backing resists curling when unwound from the roll and lies flatter than skived PTFE film tapes, creating a more uniform non-skid surface. We developed this tape as a quick and easy solution to reduce friction between moving surfaces. It functions as an anti-stick or easy-release medium where pressure, temperature changes and other factors may create a measure of adhesion. Applying 3M PTFE film tape 5490 can help improve surface movement, eliminate squeaks and rattles and reduce machine noise. - 3M PTFE film tape 5490 uses an extruded PTFE film backing. This tape offers an extremely low coefficient of friction which, in combination with a pressure sensitive silicone adhesive, creates a smooth, non-stick surface over a variety of substrates to assist in the movement of materials in many types of lay-flat applications. PTFE is chemical resistant and can be used as a temporary chemical barrier.