Ertacetal™ C NU POM-C is a polyoxymethylene, copolymer acetal grade that is often favored for its porosity-free nature. These POM-C shapes also offer low moisture absorption and excellent machinability capabilities. Ertacetal™ C NU POM-C is PMUC-certified and has passed stringent tests by an EDF-approved laboratory to meet PMUC requirements for use on nuclear sites. Each shipment is accompanied with a PMUC certificate including production batch number. MCG offers a range of engineering stock shape products that hold PMUC approval from third party certified laboratories in France. PMUC is the standard for products and materials used in electric, nuclear and thermal power plants.