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Acetal (POM) and Ethyl Acrylate: Chemical Resistance

Polyoxymethylene (acetal)

Rating

Concentration20 °C50 °CRemark
100 %B*–

* estimated rating, given in the source without a temperature

Material comparison at 20 °C

Ethyl Acrylate: Material comparison at 20 °CAcetal (POM): B (highlighted); Aluminium: A; FEP: A; Nylon (PA): A; PTFE: A; SS 304: A.Aluminium: AFEP: ANylon (PA): APTFE: ASS 304: ASS 316: AAcetal (POM): BPOMPVDF: CEPDM: DViton (FPM): DHDPE: DLDPE: DNBR: DPolycarbonate: DPETG: DPMP: DPP: DPVC Rigid: DPVC Flexible: DECTFE/ETFE: –Polystyrene: –Polysulfone: –SAN: –Silicone: –
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

Acetal (POM) shows good but limited resistance (B) to Ethyl Acrylate at 100 % at 20 °C. The material can be used in contact with this chemical, but minor effects such as slight swelling or a small reduction in mechanical properties may occur over extended exposure periods. Regular inspection of components in service is advisable. 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

Ethyl Acrylate is commonly encountered in coatings and paints and chemical synthesis. Acetal (POM) (Polyoxymethylene (acetal)) is a thermoplastic typically used for tanks, piping, containers and liners. Since Ethyl Acrylate 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

Acetal (POM) is suitable for use with Ethyl Acrylate under normal conditions, but some minor effects on the material are expected over time. Periodic monitoring for swelling, softening, or weight change is recommended, especially for long-service components. For safety-critical or long-life applications, consider Nylon (PA), FEP, PTFE instead, which are rated A for this chemical.

Did you know?

The chemical resistance of Acetal (POM) 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 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.