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 FEP resistant to Methyl Isobutyl Ketone Mibk?
FEP shows excellent resistance to Methyl Isobutyl Ketone Mibk due to its fully fluorinated structure similar to PTFE, offering near-universal chemical resistance.
⚠️ When NOT to use FEP
Avoid using FEP (Fluorinated Ethylene Propylene) with molten alkali metals and fluorine gas. Suitable up to 200°C.
Comparison Table — All Materials for Methyl Isobutyl Ketone Mibk
| Material | 20°C | 50°C |
|---|---|---|
| HDPE | A | B |
| LDPE | B | C |
| PP | B | D |
| PTFE | A | A |
| PVDF | C | C |
| FEP | A | A |
| ECTFE/ETFE | B | C |
| EPDM | D | D |
| Viton (FPM) | D | D |
| NBR | D | D |
| Silicone | NR | NR |
| SS 316 | A | A |
| SS 304 | A | A |
| Aluminium | A | A |
| PVC Rigid | D | D |
| PVC Flexible | D | D |
| PMP | C | C |
| Polystyrene | D | D |
| SAN | D | D |
| Polycarbonate | D | D |
| PETG | D | D |
| Acetal (POM) | B | B |
| Nylon (PA) | A | NR |
| Polysulfone | D | D |
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 higher temps. View all materials for Methyl Isobutyl Ketone Mibk →
FAQ
Is FEP resistant to Methyl Isobutyl Ketone (MIBK)?
FEP has Excellent (A) resistance to Methyl Isobutyl Ketone (MIBK) at 20°C. Excellent resistance - recommended for continuous use.