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 PTFE resistant to Glycerin?
PTFE shows excellent resistance to Glycerin due to the extremely strong carbon-fluorine bonds making it virtually inert to almost all chemicals.
⚠️ When NOT to use PTFE
Avoid using PTFE (Teflon) with molten alkali metals, fluorine gas at high temperatures, and certain fluorinated compounds. It is the most chemically resistant plastic available.
Comparison Table — All Materials for Glycerin
| 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 | A |
| NBR | A | NR |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | A | A |
| PVC Flexible | B | C |
| PMP | A | A |
| Polystyrene | A | A |
| SAN | A | A |
| Polycarbonate | C | C |
| PETG | A | NR |
| Acetal (POM) | A | NR |
| Nylon (PA) | A | NR |
| Polysulfone | A | A |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
FAQ
Is PTFE resistant to Glycerin?
PTFE has Excellent (A) resistance to Glycerin at 20°C. Excellent resistance - recommended for continuous use.
Can I store Glycerin in PTFE containers?
Yes, PTFE is rated A (Excellent) for Glycerin.