Compatibility Rating
At 20°C (68°F)
Fair
Limited resistance - short-term exposure only
At 50°C (122°F)
Poor
Not recommended - significant degradation expected
Why is Viton (FPM) rated this way to Methanol?
Viton (FPM) has limited resistance to Methanol. Short-term exposure may be acceptable, but prolonged contact is not recommended.
⚠️ When NOT to use Viton (FPM)
Avoid using Viton Fluoroelastomer with ketones, esters, amines, and hot water/steam. Excellent for fuel and oil applications.
Comparison Table — All Materials for Methanol
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | A |
| PP | A | A |
| PTFE | A | A |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | A | A |
| EPDM | A | NR |
| Viton (FPM) | C | D |
| NBR | C | C |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | NR |
| PVC Rigid | A | C |
| PVC Flexible | C | C |
| PMP | A | A |
| Polystyrene | C | D |
| SAN | C | D |
| Polycarbonate | D | D |
| PETG | A | NR |
| Acetal (POM) | A | A |
| Nylon (PA) | B | NR |
| Polysulfone | C | C |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
FAQ
Is Viton (FPM) resistant to Methanol?
Viton (FPM) has Fair (C) resistance to Methanol at 20°C. Limited resistance - short-term exposure only.
Can I store Methanol in Viton (FPM) containers?
Use caution - Viton (FPM) is rated C (Fair) for Methanol.