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PTFE Sheet

HY-P330S

PTFE / Polytetrafluoroethylene is a completely fluorinated polymer manufactured by free radical polymerization of tetrafluoroethylene. PTFE is a crystalline polymer with a melting point of about 621°F. Density is 2.13 to 2.19g. PTFE has exceptional resistance to chemicals. Its dielectric constant (2.1) and loss factor are low and stable across wide temperature and frequency range. PTFE has useful mechanical properties from cryogenic temperatures, up to 500°F. Its coefficient of friction is lower than almost any other material. One of the most versatile plastic materials known, PTFE is useful for a large range of products for applications excluded to other

DETAILS

Property

Test Method

Unit

Specification

Density

ASTM D792

g/cm3

2.14 – 2.18

Hardness Shore D

ASTM D2240

Points

> 58

Tensile strength

ASTM D-638

kgf/cm 2

> 210 – 375

Elongation at break

ASTM D4894/D4745

%

> 250

Compressive strength at 1% deformation

ASTM D695

kgf/cm 2

40-50

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

Impact strength

ASTM D-256

J/cm

1.4 – 1.5

Dielectric Strength

ASTM D-149

Kv/mm

22 – 24