Compatibility Rating
At 20°C (68°F)
Poor
Not recommended - significant degradation expected
At 50°C (122°F)
Poor
Not recommended - significant degradation expected
Why is PVC Flexible rated this way to Acetylene?
PVC Flexible is not recommended for use with Acetylene. Significant degradation or failure is expected.
⚠️ When NOT to use PVC Flexible
Avoid using PVC (Flexible/Plasticized) with the same solvents as rigid PVC, plus any chemical that extracts plasticizers. Generally less resistant than rigid PVC.
Comparison Table — All Materials for Acetylene
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | NR |
| LDPE | A | NR |
| PP | A | NR |
| PTFE | A | NR |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | A | A |
| EPDM | A | NR |
| Viton (FPM) | A | NR |
| NBR | A | NR |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | B | NR |
| PVC Flexible | D | D |
| PMP | NR | NR |
| Polystyrene | NR | NR |
| SAN | C | NR |
| Polycarbonate | A | NR |
| PETG | A | A |
| Acetal (POM) | A | NR |
| Nylon (PA) | A | NR |
| Polysulfone | NR | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Maximum service temperature for this material is 50°C. Always verify compatibility at your specific operating conditions.
🔄 Better Alternative?
Consider: PVC Rigid or EPDM. View all materials for Acetylene →
FAQ
Is PVC Flexible resistant to Acetylene?
PVC Flexible has Poor (D) resistance to Acetylene at 20°C. Not recommended - significant degradation expected.
Can I store Acetylene in PVC Flexible containers?
Use caution - PVC Flexible is rated D (Poor) for Acetylene.