Crystalline state - amorphous state:

Polychlorotrifluoroethylene (PCTFE) is a crystalline polymer. The degree and kind of crystallinity may be controlled by its thermal history, especially the cooling speed during processing.

In general, its range may be approximately from 30% to 70%, but it is never completely crystalline or amorphous.

Molded PCTFE with high crystallinity is a dense material which has high mechanical strength and low elongation.

On the other hand, the amorphous PCTFE moldings are optically clear, more elastic, and have a lower density.

Temperature range:

Voltalef^® 302 PCTFE is thermally steady stable from -255°C up to +150°C. It resists very low temperature, keeping most of its properties: it is a superior cryogenic plastic. It retracts slightly at low temperature.

Above +300°C the polymer is subject to thermal cracking and tends to depolymerize to lower molecular products which do not possess the chemical inertia of saturated compounds: in particular they react with humid air, which leads to acid products.

Chemical resistance:

Voltalef^® 302 PCTFE shows a combination of exceptional chemical properties due to its molecular structure: it possesses excellent chemical resistance to all mineral reactants and most organic reactants.

No moisture absorption:

PCTFE essentially does not absorb moisture. Its dimensional stability is not affected by direct contact with water or high humidity; therefore, PCTFE retains its excellent electrical properties in a high humidity environment.

Voltalef^® PCTFE is especially adapted to electrical insulation in adverse climates: tropical climate, marine conditions, etc.

Moisture non-absorption allows decreasing the dimension of the pieces.

Barrier material:

Voltalef^® 302 PCTFE is a barrier material above all else. Towards air, water, steam and many fluids (liquid gas), Voltalef^® PCTFE has extremely low gas permeability.

Non-flammable:

PCTFE is non-flammable, it does not react even with high oxygen concentration: low oxygen index = 100%.