Basic Property |
|
Economy of Material |
4 |
Compression Set Resistance |
1 |
Resilience (Rebound) |
2 |
Tear Strength |
1 |
Heat Aging Resistance |
2 |
Ozone Resistance |
2 |
Resistance to Oil & Grease |
2 |
Fuel Resistance |
3 |
Water Swell Resistance |
2 |
Gas Impermeability |
2 |
Dynamic Service / Abrasion Res. |
2 |
High Temperature - Standard |
300 |
High Temperature - Special |
- |
Low Temperature - Standard |
-22 |
Low Temperature - Special |
-40 |
Very Good = 1 |
Good = 2 |
Average = 3 |
Poor = 4 |
Temperature in °F |
| HYDROGENATED NITRILE (HNBR) | ||
HNBR is created by partially or fully hydrogenating NBR. The hydrogenating process saturates the polymeric chain with accompanying improvements to the ozone, heat and aging resistance of the elastomer and improves overall mechanical properties. |
Temperature Range (dry heat) | |
| low | high | |
| -22 °F -30 °C |
300 °F 149 °C |
|
| Application Advantages | ||
| » excellent heat and oil resistance » improved fuel and ozone resistance (approximately 5X) over Nitrile » abrasion resistance |
||
| Application Disadvantages | ||
| » increased cold flow with hydrogenation » decreased elasticity at low temperatures with hydrogenation over standard nitrile |
||
| Modifications | ||
| » increased cold flow with hydrogenation » decreased elasticity at low temperatures with hydrogenation over standard nitrile |
||
| Primary Uses | Specialized Applications | |
O-rings, rubber seals and custom molded rubber components for: |
» acrylonitrile content (ACN) from 18% to 50% |
|
