Lubricated Glass Filled PTFE
Features and Benefits
- Similar to A27 material but somewhat softer for improved sealing at low pressure
- Can be abrasive running against soft metals
Working Temperature Range
-450° to +600°F
[-268° to +316°C]
Color
Dark Gray
Typical Physical Property Values
Properties1 |
ASTM |
Units (Metric) |
Value (Metric) |
Physical Specific Gravity |
D792 | — | 2.23 |
Mechanical Tensile Strength |
D4894 | PSI [MPa] | 3,400 [23.4] |
Tensile Modulus | D4894 | PSI [MPa] | 64,000 [441] |
Elongation | D4894 | % | 230 |
Compression Strength2 | D695 | PSI [MPa] | 1,900 [13.1] |
Compressive Modulus | D695 | PSI [MPa] | 120,000 [827] |
Deformation Under Load3 | D621 | % | 8.5 |
Hardness | D2240 | Shore D | 58 |
Coefficient of Friction | Saint-Gobain | — | .09 |
Thermal Linear Coefficient of Thermal Expansion |
E831 | in./in./°F | 7.17 x 10-5 |
(78° to 392°F [26° to 200°C]) | [mm/mm/°C] | [12.9 x 10-5] | |
Mold Direction | in./in./°F | 5.19 x 10-5 | |
Cross Direction | [mm/mm/°C] | [9.35 x 10-5] |
1 All testing is performed at room temperature unless otherwise specified
2 Compression Strength was tested at !% strain
3 Deformation Under Load was tested at 2,000 PSI for 24 hours