manufacturing of PCTFE products

Industrial gaskets, custom technical articles, semi-finished products, valve seats and insert rings

Our range of PCTFE products includes O-rings, valve seats, bushings, bearings, insert rings, nozzles, washers, fittings and circuits.

PCTFE is a special plastic material, suitable for applications in aviation, food, cryogenic, medical, pharmaceutical and petrochemical fields. Thanks to excellent electrical properties, good chemical resistance and excellent thermal resistance PCTFE is highly requested in extremely critical applications with extreme temperatures and highly corrosive fluids.


The polychlorotrifluoroethylene (PCTFE) is a fluorinated polymer, or a polymer in which the chain of carbon atoms of the hydrogen atoms are replaced by fluorine atoms, thus ensuring high chemical resistance even at high temperatures. The basic structure of PCTFE is of the type [CFCl – CF2].

The PCTFE is worked mainly by compression molding or injection molding, without forgetting the extrusion and machining. High frequency welding and ultrasonic are allowed; for bonding is required a preventive treatment.

The PCTFE has inside chlorine atoms (larger than the fluorine atoms), thus resulting in a decrease of the crystallinity. Nevertheless, the rigidity and strength are good. The service temperature range from -240 ° C to 204 ° C. The chemical resistance is good but inferior to that of PTFE. The PCTFE has excellent electrical properties, but its use in the high frequency range is limited. The PCTFE has very low permeability to water vapor, is stable to weathering, does not burn, it releases chlorine when subjected to extreme radiation and is physiologically harmless.

For these reasons, the PCTFE is used in the medical industry and can come into contact with foodstuffs. It is particularly required in the fields of cryogenics, aerospace and valves. The PCTFE can be used for the realization of gaskets, sealing systems, fittings, pipes, membranes, circuits, insulating sheets and packaging.


Shown below are the most common PCTFE trade names available at LIMA.



Shown below are the most common trade names for the PCTFE material.

Please remember that LIMA can provide both generic materials and materials covered by trademark (ie that show the TM or ® endorsements), based on the requirements of the customer. If the customer wishes to details made of plastic material covered by trademark, LIMA will stock up directly by the holding company of the said trademark.