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PETG and Potassium Bromide: Chemical Resistance

Polyethylene terephthalate glycol (co-polyester)

Rating

Concentration20 °C50 °CRemark
any concentrationA*–

* estimated rating, given in the source without a temperature

Materials rated A or B at 20 °C

Based on the row for any concentration, 20 °C.

Thermoplastics
HDPE A, PP A, PVC Rigid A, LDPE A, Acetal (POM) A, Polycarbonate A, PVC Flexible A, Polystyrene A, PMP A, SAN A
Fluoropolymers
PTFE A, PVDF A, FEP A
Elastomers
EPDM A, Viton (FPM) A, NBR 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.