PTFE films are made using a special process called skiving. Films come in thicknesses of 0.04mm to 0.1mm and are primarily used in insulation. Films are usually made using virgin PTFE, although it is possible to use other grades, if required.

Properties of PTFE film include:

1. High tensile strength – up to 30Mpa is achievable
2. Excellent insulation – break-down voltages in excess of 50Kv/mm
3. High tensile elongation – values in excess of 350% are possible

Good quality skived films depend on both the moulding and skiving to be done using the right techniques and equipments. The properties of the end product are defined in the moulding phase, while the consistency of thickness and the absence of pinholes are controlled for during skiving.