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 NBR resistant to Calcium Sulfate?
NBR shows excellent resistance to Calcium Sulfate due to its acrylonitrile content providing resistance to oils, fuels, and many industrial chemicals.
⚠️ When NOT to use NBR
Avoid using Nitrile Rubber (Buna-N) with strong oxidizers, ketones, chlorinated solvents, and ozone. Not suitable for polar solvents.
Comparison Table — All Materials for Calcium Sulfate
| 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 | A | A |
| EPDM | A | A |
| Viton (FPM) | A | A |
| NBR | A | A |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | A | C |
| PVC Flexible | A | A |
| PMP | A | A |
| Polystyrene | A | A |
| SAN | NR | NR |
| Polycarbonate | A | A |
| PETG | A | A |
| Acetal (POM) | A | A |
| Nylon (PA) | A | A |
| Polysulfone | A | A |
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 100°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: Viton for wider chemical range. View all materials for Calcium Sulfate →
FAQ
Is NBR resistant to Calcium Sulfate?
NBR has Excellent (A) resistance to Calcium Sulfate at 20°C. Excellent resistance - recommended for continuous use.
Can I store Calcium Sulfate in NBR containers?
Yes, NBR is rated A (Excellent) for Calcium Sulfate.