Compatibility Rating
Why is Viton (FPM) resistant to Sodium Thiosulfate?
Viton (FPM) shows excellent resistance to Sodium Thiosulfate due to its fluorinated rubber structure providing exceptional resistance to oils, fuels, and many chemicals.
⚠️ When NOT to use Viton (FPM)
Avoid using Viton Fluoroelastomer with ketones, esters, amines, and hot water/steam. Excellent for fuel and oil applications.
Comparison Table — All Materials for Sodium Thiosulfate
| 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 | NR |
| Viton (FPM) | A | NR |
| NBR | C | C |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | NR | NR |
| PVC Flexible | NR | NR |
| PMP | NR | NR |
| Polystyrene | NR | NR |
| SAN | NR | NR |
| 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 200°C — above this, degradation risk increases significantly.
🔄 Better Alternative?
Consider: PTFE for chemical universality. View all materials for Sodium Thiosulfate →
FAQ
Is Viton (FPM) resistant to Sodium Thiosulfate?
Viton (FPM) has Excellent (A) resistance to Sodium Thiosulfate at 20°C. Excellent resistance - recommended for continuous use.
Can I store Sodium Thiosulfate in Viton (FPM) containers?
Yes, Viton (FPM) is rated A (Excellent) for Sodium Thiosulfate.