Compatibility Rating
📊 Note: Hydrochloric Acid resistance varies by concentration. Data available for: 1-5 %, 20 %, 35 %. Search for specific concentrations →
Why is PTFE resistant to Hydrochloric Acid?
PTFE shows excellent resistance to Hydrochloric Acid 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 Hydrochloric Acid
| 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 | D | D |
| Silicone | NR | NR |
| SS 316 | D | D |
| SS 304 | D | D |
| Aluminium | D | D |
| PVC Rigid | A | C |
| PVC Flexible | NR | NR |
| PMP | A | B |
| Polystyrene | A | A |
| SAN | NR | NR |
| Polycarbonate | B | C |
| PETG | C | NR |
| Acetal (POM) | D | D |
| Nylon (PA) | D | D |
| Polysulfone | A | A |
A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data
FAQ
Is PTFE resistant to Hydrochloric Acid?
PTFE has Excellent (A) resistance to Hydrochloric Acid at 20°C.
Can I store Hydrochloric Acid in PTFE?
Yes, PTFE is rated A for Hydrochloric Acid.
📊 Note: Hydrochloric Acid resistance varies by concentration. Data available for: 1-5 %, 20 %, 35 %. Search for specific concentrations →