Glass Formulated PTFE
Features and Benefits
- Excellent heat, wear, and chemical resistance
- Good cryogenic properties
- Caution: can be abrasive running against soft metals at high surface speed
- Excellent material for back-up rings
Working Temperature Range
-450° to +500°F
[-268° to +260°C]
Color
Yellow
Typical Physical Property Values
Properties1 |
ASTM |
Units (Metric) |
Value (Metric) |
| Physical Specific Gravity |
D792 |
— |
2.19 |
| Mechanical Tensile Strength |
D4894 |
PSI [MPa] |
2,700 [18.6] |
| Tensile Modulus | D4894 | PSI [MPa] | 62,000 [427] |
| Elongation | D4894 | % | 220 |
| Compression Strength2 | D695 | PSI [MPa] | 1,900 [13.1] |
| Compressive Modulus | D695 | PSI [MPa] | 128,000 [883] |
| Deformation Under Load3 | D621 | % | 7.2 |
| Hardness | D2240 | Shore D | 60 |
| Coefficient of Friction | Saint-Gobain | — | .09 |
| Thermal Linear Coefficient of Thermal Expansion |
E831 |
in./in./°F |
6.06 x 10-5 |
| (78° to 392°F [26° to 200°C]) | [mm/mm/°C] | [10.9 x 10-5] | |
| Mold Direction | in./in./°F | 5.51 x 10-5 | |
| Cross Direction | [mm/mm/°C] | [9.91 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
