Compatibility Rating
At 20°C (68°F)
Poor
Not recommended - significant degradation expected
At 50°C (122°F)
Poor
Not recommended - significant degradation expected
Why is PETG rated this way to Acetaldehyde?
PETG is not recommended for use with Acetaldehyde. Significant degradation or failure is expected.
⚠️ When NOT to use PETG
Avoid using PETG with strong acids, alkalis, and most organic solvents. Better impact resistance than PET but lower chemical resistance.
Comparison Table — All Materials for Acetaldehyde
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | C | C |
| LDPE | B | D |
| PP | C | D |
| PTFE | A | A |
| PVDF | D | D |
| FEP | A | A |
| ECTFE/ETFE | B | C |
| EPDM | C | NR |
| Viton (FPM) | D | D |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | D | D |
| PVC Flexible | NR | NR |
| PMP | B | D |
| Polystyrene | D | D |
| SAN | D | D |
| Polycarbonate | D | D |
| PETG | D | D |
| Acetal (POM) | B | NR |
| Nylon (PA) | B | NR |
| Polysulfone | D | D |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
🌡️ Temperature Note
Maximum service temperature for this material is 70°C. Always verify compatibility at your specific operating conditions.
🔄 Better Alternative?
Consider: Polycarbonate or PP. View all materials for Acetaldehyde →
FAQ
Is PETG resistant to Acetaldehyde?
PETG has Poor (D) resistance to Acetaldehyde at 20°C. Not recommended - significant degradation expected.
Can I store Acetaldehyde in PETG containers?
Use caution - PETG is rated D (Poor) for Acetaldehyde.