- O-rings are essential sealing components in modern vehicles, ensuring leak-free performance in systems exposed to oil, fuel, coolants, gases, and high thermal cycling. Automotive-grade O-Rings must meet strict durability, chemical resistance, and performance standards to support safety and efficiency.
|
Material |
Temperature Range (°C) |
Key Properties |
Applications |
|
NBR (Nitrile) |
-40 to +120 |
Oil, fuel, and grease resistance |
Oil seals, fuel systems, engine parts |
|
HNBR |
-40 to +150 |
High strength, ozone, and heat resistance |
AC systems, fuel injectors, gaskets |
|
FKM (Viton®) |
-20 to +200 |
Fuel/alcohol blend resistance, high-temp |
Turbochargers, fuel rails, exhaust parts |
|
ACM (Polyacrylate) |
-20 to +150 |
Good resistance to hot oil & oxidation |
Transmission systems, power steering |
|
EPDM |
-50 to +150 |
Excellent coolant, brake fluid & weather resistance |
Cooling circuits, braking systems |
|
Silicone |
-60 to +230 |
Flexibility in cold, thermal stability |
Sensors, lighting, interior applications |
