Compatibility Rating
At 20°C (68°F)
Good
Good resistance - suitable for intermittent contact
At 50°C (122°F)
Fair
Limited resistance - short-term exposure only
Why is Viton (FPM) resistant to Phthalic Acid?
Viton (FPM) shows good resistance to Phthalic Acid due to its fluorinated rubber structure providing exceptional resistance to oils, fuels, and many chemicals.
⚠️ 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 Phthalic Acid
| 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 | NR | NR |
| EPDM | A | NR |
| Viton (FPM) | B | C |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | A | D |
| PVC Flexible | NR | NR |
| PMP | NR | NR |
| Polystyrene | A | NR |
| SAN | A | A |
| Polycarbonate | C | C |
| PETG | A | NR |
| Acetal (POM) | A | NR |
| Nylon (PA) | C | C |
| Polysulfone | NR | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Performance degrades significantly at higher temperatures — rated Good at 20°C but only Fair at 50°C. For elevated temperatures, consider a more resistant material. Max service temp: 200°C.
🔄 Better Alternative?
Consider: PTFE for chemical universality. View all materials for Phthalic Acid →
FAQ
Is Viton (FPM) resistant to Phthalic Acid?
Viton (FPM) has Good (B) resistance to Phthalic Acid at 20°C. Good resistance - suitable for intermittent contact.