″Vestamid″ - An Engineering Plastic.

″Vestamid″ is the registered trademark for a polyamide 12 of Chemische Werke Huels AG. The characteristic feature of the macromolecular ″polyamide″ molding materials is the acid-amide group regularly occurring in the long molecular chains. The following properties are discussed - lowest specific gravity, lowest water absorption of all polyamides produced on a commercial scale, highest dimensional accuracy of the moldings, best balance between electrical and mechanical properties in fluctuating atmospheric humidity and in water, highest impact strength in the dry state and at temperatures as low as minus 150 degree C, highest abrasion resistance, excellent sliding properties. Processing techniques as well as fields of applications are described. Engineering parts molded of ″Vestamid″ are illustrated.