PCTFE Backup Ring gasket

PCTFE Backup Ring gasket Kel-F is a fluorochemical product also known as PCTFE TECHNICAL DESCRIPTION PolyChloroTriFluoroEthylene is a fluorocarbon-based polymer and is commonly abbreviated PCTFE. The Kel-F® brand is a registered trademark of 3M, but they discontinued production in 1995. The only remaining brand, Neoflon ®, is made by Daikin Industries of Japan. This PCTFE resin has the same chemical structure and properties as the original Kel-F® brand material. Note: