Virgin PTFE Data Sheet

Property Test Method Unit Specification
Specific gravity ASTM D792 g/cm3 2.14 – 2.18
Coefficient of linear thermal expansion ASTM D696 1/oC * 10-5 12 – 13
Hardness Shore D ASTM D2240 Points > 58
Tensile strength ASTM D4894/D4745 N/mm2 > 24
Elongation at break ASTM D4894/D4745 % > 250
Compressive strength at 1% deformation ASTM D695 N/mm2 4 – 5
Deformation under load (24 h 13.7 N/mm2 23°C ASTM D621 % 14 – 17
Permanent deformation (as above, after 24-h relaxation) ASTM D621 % 7 – 9
Kinetic coefficient of friction ASTM D1894 / 0.06
Wear factor at PV 100 ASTM D3702 cm3. min . 10-8
_______________
Kg . m . h
2900

 

Service Temperature:

  • Excellent resistance to continuous service temperature from -200oC to +260oC .

Chemical Resistance:

  • PTFE Processes a high inertness towards nearly all known chemicals. It is only attacked by elemental alkali metals, chlorine trifluoride and elemental fluorine at high temperatures and pressure.

Solvent Resistance:

  • PTFE is insoluble in all solvents up to temperatures as high as 300oC ( 572oF). Certain highly fluorinated oils only swell and dissolve PTFE at temperatures close to the crystalline melting point.

FDA Approved:

  • ( Code of federal regulation 21 CFR Ch.1 revised as of April 1st 1999 edition), Sections 175.105,-175.300,-176.170,176.180,-177.1250,-177.1550,-177.2600,-178.3570.”Perfluorocarbon Resins” of the Food and Drug Administration.

newspaper templates - theme rewards