3M PTFE film tape 5491 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. - Non-stick PTFE film provides an exceptionally slick surface for easy clean-up. Silicone adhesive provides clean removal from a variety of surfaces. Wide temperature range for performance on heated machinery and equipment.