Compatibility Rating
Why is HDPE resistant to Crotonaldehyde?
HDPE shows excellent resistance to Crotonaldehyde 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 Crotonaldehyde
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | NR |
| LDPE | NR | NR |
| PP | A | NR |
| PTFE | A | NR |
| PVDF | A | C |
| FEP | A | A |
| ECTFE/ETFE | NR | NR |
| EPDM | A | NR |
| Viton (FPM) | C | NR |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | NR |
| PVC Rigid | D | D |
| PVC Flexible | NR | NR |
| PMP | D | D |
| Polystyrene | NR | NR |
| SAN | NR | NR |
| Polycarbonate | D | D |
| PETG | NR | NR |
| Acetal (POM) | B | B |
| Nylon (PA) | B | B |
| Polysulfone | NR | NR |
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 80°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: PP (higher temp) or PTFE (universal). View all materials for Crotonaldehyde →
FAQ
Is HDPE resistant to Crotonaldehyde?
HDPE has Excellent (A) resistance to Crotonaldehyde at 20°C. Excellent resistance - recommended for continuous use.
Can I store Crotonaldehyde in HDPE containers?
Yes, HDPE is rated A (Excellent) for Crotonaldehyde.