Polychlorotrifluoroethylene is a thermoplastic chlorofluoropolymer, abbreviated is PCTFE. PCTFE was first sold as the brand name KEL-F® by 3M and today now sold under the brand name Neoflon®, however PCTFE resin has the same chemical structure and properties as the original Kel-F® brand material.
PCTFE offers
- Excellent electrical, mechanical, and physical properties
- No flammability
- Good chemical resistance
- Near zero moisture absorption
MCP Engineering Plastics Limited are PCTFE Washer suppliers and PCTFE Washer manufacturers.
We machine PCTFE washers from extruded 5mm diameters to 45mm diameters. On request we also offer grinded material and extra annealing for strict tolerances. Irrespective of the size you require, we can offer PCTFE Washers to your specification.
PCTFE (Polychlorotrifluoroethylene) is a melt-processable chlorofluoropolymer. The presence of a chlorine atom, which has a greater atomic radius than that of fluorine, gives rise to irregularities in the polymer chain and reduces polymer crystallinity. This results in PCTFE having a relatively low melting point among fluoropolymers. It is also the polymer with the lowest water vapor and moisture absorption rate. It resists ignition because its Limiting Oxygen Index (LOI), which is greater than 95.
PCTFE Washers will resists attack by most chemicals, a property that is exhibited due to the presence of its high fluorine content. It is oxidation resistant because it does not have any hydrogen atoms.
The main field of application of PCTFE is cryogenics due to the fact that it is the fluoropolymer that best retains its mechanical properties at extremely low temperatures and is therefore the least fragile of the fluoropolymers.
PCTFE is incompatible with alkaline metals and in some cases with organic amines. Its use is not recommended at temperatures above 150°C.
PCTFE Washers are recommended for cryogenic application and handling of gases. PCTFE Washers have better mechanical properties than other fluoropolymers and low permeability.
MCP Engineering Plastics Limited, based on the Hertfordshire and Essex County border, are an established and experienced PCTFE Washer supplier and manufacturer to a range of industries throughout the UK. We have a wide range of filled materials, in all sizes, ready for despatch, ex-stock.
For further technical information on our range of PCTFE Washer specifications, please view our Materials pages page and Technical Data Sheets pages.