O-Ring Material Temperature Guide
Recommended O-ring application service temperature limits for basic polymer types.

| Degrees in Fahrenheit (F◦) | Degrees in Celsius (C◦) | Polymer Type |
|---|---|---|
| 25° to 450° | - 4° to 232° | AFLAS |
| - 75° to 250° | - 59° to 120° | Butyl |
| - 70° to 250° | - 57° to 121° | Ethylene Propylene |
| - 15° to 400° | - 26° to 205° | Fluorocarbon |
| - 100° to 350° | - 73° to 177° | Fluorosilicone |
| - 15° to 400° | - 26° to 205° | Hifluor |
| - 23° to 300° | - 32° to 149° | Hydrogenated Nitrile |
| - 35° to 225° | - 37° to 107° | Neoprene |
| - 30° to 250° | - 34° to 121° | Nitrile (General Service) |
| - 65° to 225° | - 55° to 107° | Nitrile (Low Temperature) |
| - 15° to 500° | - 26° to 260° | Perfluoroelastomer (Parofluor) |
| - 5° to 350° | - 21° to 177° | Polyacrylate |
| - 40° to 180° | - 40° to 82° | Polyurethane |
| - 65° to 450° | - 54° to 232° | Silicone |
Source: Parker Hannifin
Remember: Always test under actual service conditions!
| Degrees in Fahrenheit (F◦) | Degrees in Celsius (C◦) | Polymer Type |
|---|---|---|
| 25° to 450° | - 4° to 232° | AFLAS |
| - 75° to 250° | - 59° to 120° | Butyl |
| - 70° to 250° | - 57° to 121° | Ethylene Propylene |
| - 15° to 400° | - 26° to 205° | Fluorocarbon |
| - 100° to 350° | - 73° to 177° | Fluorosilicone |
| - 15° to 400° | - 26° to 205° | Hifluor |
| - 23° to 300° | - 32° to 149° | Hydrogenated Nitrile |
| - 35° to 225° | - 37° to 107° | Neoprene |
| - 30° to 250° | - 34° to 121° | Nitrile (General Service) |
| - 65° to 225° | - 55° to 107° | Nitrile (Low Temperature) |
| - 15° to 500° | - 26° to 260° | Perfluoroelastomer (Parofluor) |
| - 5° to 350° | - 21° to 177° | Polyacrylate |
| - 40° to 180° | - 40° to 82° | Polyurethane |
| - 65° to 450° | - 54° to 232° | Silicone |
Source: Parker Hannifin
Remember: Always test under actual service conditions!