Compatibility Rating
At 20°C
Poor
Not recommended - significant degradation expected
At 50°C
Poor
Not recommended - significant degradation expected
Why is HDPE rated this way to Chlorine?
HDPE is not recommended for use with Chlorine. Significant degradation or failure is expected.
⚠️ When NOT to use HDPE
Avoid using High-Density Polyethylene with strong oxidizing acids (nitric, chromic), chlorinated solvents, and aromatic hydrocarbons. Maximum service temperature is around 80°C.
Comparison Table — All Materials for Chlorine
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | D | D |
| LDPE | D | D |
| PP | D | D |
| PTFE | A | NR |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | NR | NR |
| EPDM | D | D |
| Viton (FPM) | A | A |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | NR |
| SS 304 | A | NR |
| Aluminium | C | C |
| PVC Rigid | D | D |
| PVC Flexible | D | D |
| PMP | D | D |
| Polystyrene | D | D |
| SAN | D | D |
| Polycarbonate | D | D |
| PETG | D | D |
| Acetal (POM) | D | D |
| Nylon (PA) | D | D |
| Polysulfone | D | D |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Maximum service temperature for this material is 80°C. Always verify compatibility at your specific operating conditions.
🔄 Better Alternative?
Consider: PP (higher temp) or PTFE (universal). View all materials for Chlorine →
FAQ
Is HDPE resistant to Chlorine?
HDPE has Poor (D) resistance to Chlorine at 20°C.
Can I store Chlorine in HDPE?
Caution - HDPE is rated D for Chlorine.