Teflon welded film, Teflon PFA wedling film
It is used for felting the tie-in of F4 wax cloth clitellum and
jointing the F4 board after it is unfreezed.
It is used for making the high-temperature basic material of the
sticky tape and capacitor.
Bear the high and low temperature
-200oC--+260oC.It can bear two times high temperature than F4
Good plaster and thermo sealing with F4 ect.
It wont be wet with any other things when it is under the melting
point.when it is above the melting point,it can have a good plaster
with F4,metal even itself.(thermo seal)
Nonsticky .Against water and oil
Water tangency angle=115
Electric dependability,high insulating
Dielectric constant will always be 2.1 no matter when it is at the
high or low temperature (60Hz-60MNz).Even if its surface is hurt
because of fire,it won,t have conductive rail
Volume resistivity>1018ohmmSurface resistivity >2 x 1013ohm
Bear electric arc >165 seconds ,it won't creepage
Bear climate abilityIt can be exposured under the sunshine and in the ozone for long
Bear cankerous ability
It can reactivity with Fl and Na at the high temperature,but other
thick or diluent organic/ inorganic ache , alkali or ester have no
effect to it.
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