PCTFE is a unique material able to withstand the extreme cold temperatures down to near absolute zero without going through significant material property changes. It is widely used in the semiconductor industry because of its unparalleled track record in the field for durability, together with its ability to handle both liquid helium and liquid hydrogen for resistance to on gassing without becoming brittle.
Classified as USP Class VI, PCTFE is an ultra-high purity material that is typically used to engineer seals for high pressure applications. It has extremely low gas permeability and moisture absorption, and is strong and rigid with a low melt viscosity, which permits extrusion, compression moulding and injection moulding. It has excellent resistance to corrosion, stress cracking, chemicals, weathering, and cold flow, and is designed to cope with temperature extremes, operating in temperatures as low as -252°C.