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PETG and Ethanol: Chemical Resistance

Polyethylene terephthalate glycol (co-polyester)

Rating

Concentration20 °C50 °CRemark
40 %AA
50 %AA
96 %AA

Material comparison at 20 °C

Ethanol: Material comparison at 20 °CPETG: A (highlighted); Aluminium: A; ECTFE/ETFE: A; EPDM: A; FEP: A; HDPE: A.Aluminium: AECTFE/ETFE: AEPDM: AFEP: AHDPE: ALDPE: ANylon (PA): APolycarbonate: APETG: APETGPMP: AAcetal (POM): APP: APolysulfone: APTFE: APVC Rigid: APVDF: ASAN: ASS 304: ASS 316: AViton (FPM): CNBR: CPolystyrene: CPVC Flexible: CSilicone: –
A very good resistanceB good resistanceC limited resistanceD not resistantno data
Each bar is one material. Taller bars indicate better resistance. The highlighted bar is the current material.

Resistance overview

PETG shows excellent resistance to Ethanol across all 3 tested concentrations (40 %, 50 %, 96 %) at 20 °C, making it a reliable choice for storage, transfer, and handling applications involving this chemical at any of the tested strengths. The rating remains stable between 20 °C and 50 °C, which means this material can also handle moderately elevated process temperatures without additional risk.

Application context

Ethanol is commonly encountered in chemical synthesis and food and beverage processing. PETG (Polyethylene terephthalate glycol (co-polyester)) is a thermoplastic typically used for tanks, piping, containers and liners. Since Ethanol is flammable, material selection must also consider the risk of static charge buildup and the need for proper grounding in storage and transfer systems.

Practical recommendation

PETG can be used with confidence for Ethanol containment and handling. The A rating indicates that the material shows no significant change in weight, dimensions, or mechanical properties after prolonged contact under test conditions. This holds true at both 20 °C and 50 °C, giving a good safety margin for typical process environments.

Did you know?

The chemical resistance of PETG depends not only on the chemical concentration but also on exposure time, mechanical stress, and the presence of other chemicals in the mixture.

Materials rated A or B at 20 °C

Based on the row for 96 %, 20 °C.

Thermoplastics
HDPE A, PP A, PVC Rigid A, LDPE A, Nylon (PA) A, Acetal (POM) A, Polycarbonate A, Polysulfone A, PMP A, SAN A
Fluoropolymers
PTFE A, PVDF A, FEP A, ECTFE/ETFE A
Elastomers
EPDM A
Metals
SS 316 A, SS 304 A, Aluminium A

About PETG

PETG is a co-polyester for clear containers. Strong acids and alkalis and most organic solvents attack it.

Rating scale

A rating marked * is an estimate in the source, not a test result. An estimate is given as one value without a temperature.

About this data

The ratings come from the chemical resistance list published by Bürkle GmbH, which compiled them from raw-material manufacturers’ data. They describe laboratory tests on the raw material at 20 °C and 50 °C.

A finished part also sees pressure, mechanical stress, welds and mixtures that a laboratory test does not. Treat the rating as a first filter and test under your own conditions before relying on it.