+39 035.93.52.85 info@guarnitex.com

PRINCIPAL PROPERTIES OF P.T.F.E.

The products PTFE not sintered are realized by 100% and pure PTFE (polytetrafluoroethlylene)

THERMAL RESISTANCE

PTFE is not flammable, it may be used at temperatures that oscillated among -200°C and +260°C, this shows the high resistance to the temperatures of this materials, so the material still maintains good part of its features, while appreciable decompositions are evident to temperatures upper to 400°C.

CHEMISTRY RESISTANCE

PTFE resists to acids and to the most aggressive gases.
It is practically inactive against the mixtures and of elements with a pH that oscillated among 0 and 14. It may be attached only by the alkaline metals, such as, for example, sodium and potassium, at the melt state and by the fluorine at the gaseous state.
The acids, alkaline and solvents of any type, don’t corrode the PTFE.
The fluorinated hydrocarbons provoke a certain swelling, but in reversing manner; only specific oils, highly fluorinated used at a temperature of above than 300°C practice a certain solvent action.

RESISTANCE TO THE VOID

PTFE insured no leak of gas, and also, no depolymerization.

CHALLENGE TO TIME

The PTFE is not liable to aging or to deterioration in the time, whatever is the employment of the material. PTFE has a exceptional resistance to the ultraviolet rays, verified after over 60 years at the sun of the Florida.

ATOXICITY

Taken at an elevated temperature the PTFE is inodorous and tasteless.
The material is not toxic and doesn’t pollute, furthermore doesn’t contain extractable substance and isn’t altered by the microorganisms.

EXCELLENT INSULATOR

Even though the coefficient of transmission isn’t one of the most lows in the plastic family, the PTFE is also used for this kind of application, since the coefficient of thermal conductivity doesn’t change with the change of the temperature, in addition it is the only plastic that may be used at continuous temperature of 260°.
It has electric and dielectric exceptional properties and it possesses a very reduced both static and dynamic friction coefficient.
The uptake of dampness is invaluable.

FIELDS OF USE

Thanks to PTFE’s high ability of chemical and thermal resistance, further the great plasticity, is indicated for gaskets, rings, press tow, ball for valve, coupling of expansion for tub, protective coverings, insulating, ferrule, elastic strip and gaskets for pistons.

INFO & QUOTES

9 + 2 =