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Isobutanol Resistance of PETG

Is PETG compatible with Isobutanol? See the chemical resistance rating below.

Compatibility Rating

At 20°C (68°F)
B
Good
Good resistance - suitable for intermittent contact
At 50°C (122°F)
B
Good
Good resistance - suitable for intermittent contact

Why is PETG resistant to Isobutanol?

PETG shows good resistance to Isobutanol due to its glycol-modified polyester structure providing moderate chemical resistance.

⚠️ When NOT to use PETG

Avoid using PETG with strong acids, alkalis, and most organic solvents. Better impact resistance than PET but lower chemical resistance.

Comparison Table — All Materials for Isobutanol

Material20°C50°C
HDPEAA
LDPEAA
PPAA
PTFEAA
PVDFAA
FEPAA
ECTFE/ETFEAA
EPDMANR
Viton (FPM)ANR
NBRCD
SiliconeNRNR
SS 316AA
SS 304AA
AluminiumANR
PVC RigidAB
PVC FlexibleNRNR
PMPAB
PolystyreneBB
SANCD
PolycarbonateAB
PETGBB
Acetal (POM)ANR
Nylon (PA)BB
PolysulfoneAB

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

FAQ

Is PETG resistant to Isobutanol?

PETG has Good (B) resistance to Isobutanol at 20°C. Good resistance - suitable for intermittent contact.

Can I store Isobutanol in PETG containers?

Yes, PETG is rated B (Good) for Isobutanol.

All Materials for Isobutanol All Chemicals for PETG