DESCRIPTION

25% Glass Filled PTFE has better creep and wear resistance compared to Virgin PTFE, these properties are improved with the addition of a glass filler. This filler improves dimensional stability, slightly raises temperature limitations and improves creep resistance. It is white in colour and very rigid. It has a wide range of applications which makes use of its extreme chemical resistance, low coefficient of friction, excellent insulation properties and thermal stability up to 260°C.
 
 SERVICE
 
Virtually resistant to all corrosive chemicals – with the exception of fluorine, some flourochemicals and molten alkali metals. Anti-stick and non-flammable. Fatigue resistant (especially in applications which involve flexing or vibrations)
 
 
 
Max recommended temperatures : -200°C to +260°C

 These temperature and pressure guides cannot necessarily be used

simultaneously and may not apply to all thicknesses.

APPROVALS/COMPLIANCE

Non-flammable ASTM D635 & D470
Food Safe FDA 175.105 175.300 176.170 176.180 177.1520 177.1550 177.2600 178.3570
 

ALL PRESSURES AND TEMPERATURES ARE SUBJECT TO INDIVIDUAL APPLICATION

TYPICAL PHYSICAL PROPERTIES 25% GLASS FILLED PTFE

PROPERTY
METHOD
UNITS
SPECIFICATION
Specific Gravity ASTM D792 g/cc 2230 – 2260
Tensile Strength ASTM D4894 MPa 13 – 18
Elongation ASTM D4894 % 180 – 220
Hardness ASTM D2240 Shore D 60 – 65
Deformation Under Load
140kg/cm² 24hrs @ 23°C
ASTM D695 % 10 – 12
Deformation Under Load
140kg/cm² 24hrs @ 150°C
ASTM D695 % 13 – 15
Permanent Deformation
After 24hrs, relaxation @ 23°C
ASTM D695 % 5 – 6
Permanent Deformation
After 24 hrs, relaxation @ 150°C
ASTM D695 % 8 – 10
Friction Coefficient ASTM D1894 0.15 (Dynamic)
Volume Resistivity ASTM D257 Ohm cm 10 15
Water Absorption ASTM D570 % 0.013
Service Temperature °C -200°C / +260°C
Flammability UL 94 % V-0
Melting Point °C 325 – 335