As part of the fluoropolymers, PCTFE includes a strong carbon-fluorine bond but, here, some carbon atoms are also linked to a chlorine atom. This gives to PCTFE materials unique properties. PCTFE parts are very stable over time and in demanding environments.
Due to its chemical composition, polymer chains of PCTFE have less flexibility, a higher glass transition temperature than PTFE. PCTFE shows an excellent chemical resistance, but narrower than PTFE, because carbon-chlorine bonds are weaker than carbon-fluorine ones.
Its chemical structure then offers a different asset. PCTFE offers the best performance in gas barriers. PCTFE parts especially offer the best performance in low permeation capability of moisture and steam atmosphere. It is also recommended for its high resistance to oxidation and its compatibility with liquid oxygen.