Compatibility Rating
At 20°C (68°F)
Excellent
Excellent resistance - recommended for continuous use
At 50°C (122°F)
Excellent
Excellent resistance - recommended for continuous use
Why is PETG resistant to Sodium Nitrite?
PETG shows excellent resistance to Sodium Nitrite due to its glycol-modified polyester structure providing moderate chemical resistance.
⚠️ 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 Sodium Nitrite
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | A |
| LDPE | A | A |
| PP | A | A |
| PTFE | A | A |
| PVDF | A | A |
| FEP | A | A |
| ECTFE/ETFE | NR | NR |
| EPDM | A | NR |
| Viton (FPM) | A | A |
| NBR | B | C |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | NR |
| PVC Rigid | A | NR |
| PVC Flexible | A | NR |
| PMP | A | NR |
| Polystyrene | A | A |
| SAN | A | A |
| Polycarbonate | B | B |
| PETG | A | A |
| Acetal (POM) | A | A |
| Nylon (PA) | A | NR |
| 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 70°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: Polycarbonate or PP. View all materials for Sodium Nitrite →
FAQ
Is PETG resistant to Sodium Nitrite?
PETG has Excellent (A) resistance to Sodium Nitrite at 20°C. Excellent resistance - recommended for continuous use.
Can I store Sodium Nitrite in PETG containers?
Yes, PETG is rated A (Excellent) for Sodium Nitrite.