Compatibility Rating
At 20°C (68°F)
No Data
No data available
At 50°C (122°F)
No Data
No data available
Why is FEP rated this way to Sodium Hydroxide Caustic Soda?
No test data is available for FEP with Sodium Hydroxide Caustic Soda. Always test before use.
⚠️ When NOT to use FEP
Avoid using FEP (Fluorinated Ethylene Propylene) with molten alkali metals and fluorine gas. Suitable up to 200°C.
Comparison Table — All Materials for Sodium Hydroxide Caustic Soda
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | A |
| PP | A | A |
| PTFE | A | A |
| PVDF | B | B |
| FEP | NR | NR |
| ECTFE/ETFE | NR | NR |
| EPDM | A | NR |
| Viton (FPM) | D | D |
| NBR | C | D |
| Silicone | NR | NR |
| SS 316 | B | B |
| SS 304 | B | B |
| Aluminium | D | D |
| PVC Rigid | NR | NR |
| PVC Flexible | NR | NR |
| PMP | NR | NR |
| Polystyrene | NR | NR |
| SAN | NR | NR |
| Polycarbonate | D | D |
| PETG | D | D |
| Acetal (POM) | C | C |
| Nylon (PA) | A | C |
| Polysulfone | NR | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Maximum service temperature for this material is 200°C. Always verify compatibility at your specific operating conditions.
🔄 Better Alternative?
Consider: PTFE for higher temps. View all materials for Sodium Hydroxide Caustic Soda →
FAQ
Is FEP resistant to Sodium Hydroxide (Caustic Soda)?
FEP has No Data (NR) resistance to Sodium Hydroxide (Caustic Soda) at 20°C. No data available.
Can I store Sodium Hydroxide (Caustic Soda) in FEP containers?
Use caution - FEP is rated NR (No Data) for Sodium Hydroxide (Caustic Soda) at room temperature.