Compatibility Rating
Why is HDPE resistant to Transformer Oil?
HDPE shows excellent resistance to Transformer Oil due to its tightly packed molecular structure and chemical inertness to most acids, bases, and salts.
⚠️ 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 Transformer Oil
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | C |
| LDPE | C | C |
| PP | A | C |
| PTFE | A | A |
| PVDF | C | C |
| FEP | A | A |
| ECTFE/ETFE | NR | NR |
| EPDM | D | D |
| Viton (FPM) | B | C |
| NBR | C | C |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | A | NR |
| PVC Flexible | NR | NR |
| PMP | A | NR |
| Polystyrene | A | C |
| SAN | A | C |
| Polycarbonate | C | C |
| PETG | A | A |
| Acetal (POM) | C | C |
| Nylon (PA) | A | NR |
| Polysulfone | A | NR |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Performance degrades significantly at higher temperatures — rated Excellent at 20°C but only Fair at 50°C. For elevated temperatures, consider a more resistant material. Max service temp: 80°C.
🔄 Better Alternative?
Consider: PP (higher temp) or PTFE (universal). View all materials for Transformer Oil →
FAQ
Is HDPE resistant to Transformer Oil?
HDPE has Excellent (A) resistance to Transformer Oil at 20°C. Excellent resistance - recommended for continuous use.