Ertacetal C (POM-C) is Quadrant's copolymer acetal grade. Next to the standard natural grade, there is also a series of special colors available all showing a FDA food contact compliant composition. The acetal copolymer is more resistant to hydrolysis, strong alkalis and thermal-oxidative degradation than the acetal homopolymer.
Ertacetal C natural, blue 50 and black 90 are available in various shapes as "Food Grades".
In general, acetals do not perform as well in abrasive wear applications as nylons. Compensation for moisture related growth generally allows Nylatron® nylons to be used for wet, abrasive applications. If your application requires dimensional consistency in an abrasive, high humidity or submerged environment, Ertalyte® PET-P will often offer improved performance.
Ertacetal H (POM-H) is Quadrant's homopolymer acetal grade. It offers a higher mechanical strength, stiffness, hardness and creep resistance as well as a lower thermal expansion rate and often also a better wear resistance than the acetal copolymer.
Structural keels
Delrin* acetal delivers outstanding fatigue and impact resistance in this continuously loaded structural keel for a prosthetic device. (Prior materials: Nylon, Elastomer)