Compatibility Rating
📊 Note: Potassium Hydroxide resistance varies by concentration. Data available for: 1 %, 10 %, 30 %, 50 %. Search for specific concentrations →
Why is PVC Rigid resistant to Potassium Hydroxide?
PVC Rigid shows excellent resistance to Potassium Hydroxide due to its chlorinated structure providing resistance to acids, alkalis, and many inorganic chemicals.
⚠️ When NOT to use PVC Rigid
Avoid using PVC (Rigid) with ketones, esters, aromatic and chlorinated solvents. Maximum temperature around 60°C.
Comparison Table — All Materials for Potassium Hydroxide
| 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) | A | C |
| NBR | C | C |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | D | D |
| PVC Rigid | A | A |
| PVC Flexible | NR | NR |
| PMP | A | A |
| Polystyrene | B | B |
| SAN | NR | NR |
| Polycarbonate | C | D |
| PETG | D | D |
| Acetal (POM) | A | A |
| Nylon (PA) | A | NR |
| Polysulfone | A | A |
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 60°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: PP or PVDF for higher temperatures. View all materials for Potassium Hydroxide →
FAQ
Is PVC Rigid resistant to Potassium Hydroxide?
PVC Rigid has Excellent (A) resistance to Potassium Hydroxide at 20°C.
Can I store Potassium Hydroxide in PVC Rigid?
Yes, PVC Rigid is rated A for Potassium Hydroxide.
📊 Note: Potassium Hydroxide resistance varies by concentration. Data available for: 1 %, 10 %, 30 %, 50 %. Search for specific concentrations →