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Motor Oil Resistance of PTFE

Is PTFE compatible with Motor Oil? See the chemical resistance rating below.

Compatibility Rating

At 20°C (68°F)
A
Excellent
Excellent resistance - recommended for continuous use
At 50°C (122°F)
A
Excellent
Excellent resistance - recommended for continuous use

Why is PTFE resistant to Motor Oil?

PTFE shows excellent resistance to Motor Oil 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 Motor Oil

Material20°C50°C
HDPEANR
LDPEAC
PPAC
PTFEAA
PVDFBB
FEPAA
ECTFE/ETFENRNR
EPDMDD
Viton (FPM)AA
NBRCC
SiliconeNRNR
SS 316AA
SS 304AA
AluminiumAA
PVC RigidNRNR
PVC FlexibleNRNR
PMPNRNR
PolystyreneNRNR
SANNRNR
PolycarbonateAA
PETGAA
Acetal (POM)AA
Nylon (PA)ANR
PolysulfoneNRNR

A=Excellent · B=Good · C=Fair · D=Poor · NR=No Data

FAQ

Is PTFE resistant to Motor Oil?

PTFE has Excellent (A) resistance to Motor Oil at 20°C. Excellent resistance - recommended for continuous use.

Can I store Motor Oil in PTFE containers?

Yes, PTFE is rated A (Excellent) for Motor Oil.

All Materials for Motor Oil All Chemicals for PTFE