Plastics for the foodstuffs and nutritional products industry must comply with strict safety regulations. POM W is particularly well suited, being a semi-crystalline thermoplastic, certified per DVGW regulations (technical regulations, worksheet W 270) and so is particularly suitable for safe use with drinking water.
At the same time it still retains the good machinability, dimensional stability and chemical resistance of the base plastic polyoxymethylene. Foodstuffs-approved per EU-FDA. For these reasons, POM-W plastics are often used as construction elements for potable water filling.