Compatibility Rating
At 20°C (68°F)
Good
Good resistance - suitable for intermittent contact
At 50°C (122°F)
Good
Good resistance - suitable for intermittent contact
Why is Polysulfone resistant to Sulfur Dioxide?
Polysulfone shows good resistance to Sulfur Dioxide due to its sulfone group providing thermal and chemical stability up to 150°C.
⚠️ When NOT to use Polysulfone
Avoid using Polysulfone (PSU) with ketones, esters, and chlorinated solvents. Excellent for hot water and steam applications.
Comparison Table — All Materials for Sulfur Dioxide
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | A |
| PP | A | C |
| PTFE | A | A |
| PVDF | A | D |
| FEP | A | A |
| ECTFE/ETFE | A | A |
| EPDM | A | NR |
| Viton (FPM) | D | D |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | C | D |
| PVC Rigid | A | B |
| PVC Flexible | NR | NR |
| PMP | A | A |
| Polystyrene | C | D |
| SAN | NR | NR |
| Polycarbonate | C | C |
| PETG | NR | NR |
| Acetal (POM) | D | D |
| Nylon (PA) | C | C |
| Polysulfone | B | B |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Good resistance at both 20°C and 50°C. Maximum service temperature for this material is 150°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: PVDF or PTFE. View all materials for Sulfur Dioxide →
FAQ
Is Polysulfone resistant to Sulfur Dioxide?
Polysulfone has Good (B) resistance to Sulfur Dioxide at 20°C. Good resistance - suitable for intermittent contact.
Can I store Sulfur Dioxide in Polysulfone containers?
Yes, Polysulfone is rated B (Good) for Sulfur Dioxide.