Polyimide is resistant to higher temperatures than aromatic polyesters. Even in dry environments, polyimide-filled PTFE materials will not abrade mating surfaces.
Polyimide-filled PTFE materials have low wear rates and low coefficient of friction and they are used in seal components for static and dynamic applications where resistance to high pressure and temperature is key.
Polyimide-filled PTFE materials are excellent for dry running compressor rings.
PBY Material Codes:
PB10704G - 10% Polyimide Filled PTFE
PB10706G - 15% Polyimide Filled PTFE
Excellent High Temperature Resistance
Excellent High-Pressure Resistance
Increased Hardness
High Temperature and High Pressure
Dry running compressor rings
PB10704G meets AMS 3678/13 requirements.
PB10706G meets AMS 3678/16 requirements.
Property | Test Method | Units | 10 Polyimide | 15 Polyimide |
---|---|---|---|---|
Color | - | - | Dark Yellow | Dark Yellow |
Specific Gravity | ASTM D792 | - | 1.960 - 2.070 | 1.850 - 1.940 |
Hardness Shore D | ASTM D2240 | - | 57 - 67 | 56 - 66 |
Tensile Strength, min. | ASTM D4745 | PSI [MPa] | 2,300 [15.9] | 2,400 [16.5] |
Elongation at Break, min. | ASTM D4745 | % | 200 | 180 |
Second Melt Peak Temp. | ASTM D3418 | °F [°C] | 621 [327] | 621 [327] |
Glass Transition Temp. | ASTM D3418 | °F [°C] | -143 [-97]; 246 [119] | -143 [-97]; 246 [119] |
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