Compatibility Rating
Why is PP resistant to Transformer Oil?
PP shows excellent resistance to Transformer Oil due to its semi-crystalline structure providing good chemical resistance to acids, bases, and organic solvents at moderate concentrations.
⚠️ When NOT to use PP
Avoid using Polypropylene with concentrated oxidizing acids, chlorinated solvents, and aromatic hydrocarbons. Becomes brittle below 0°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: 100°C.
🔄 Better Alternative?
Consider: PVDF or PTFE for higher temperatures. View all materials for Transformer Oil →
FAQ
Is Polypropylene (PP) resistant to Transformer Oil?
Polypropylene (PP) has Excellent (A) resistance to Transformer Oil at 20°C. Excellent resistance - recommended for continuous use.