ChemicalResistance
ChemicalResistance.org

Acetal (POM) and Ethyl Acrylate: Chemical Resistance

Polyoxymethylene (acetal)

Rating

Concentration20 °C50 °CRemark
100 %B*–

* estimated rating, given in the source without a temperature

Materials rated A or B at 20 °C

Based on the row for 100 %, 20 °C.

Thermoplastics
Nylon (PA) A
Fluoropolymers
PTFE A, FEP A
Metals
SS 316 A, SS 304 A, Aluminium A

About Acetal (POM)

Acetal (POM) resists many organic solvents and fuels. Strong acids and oxidising agents degrade 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.