Advanced Polymer Technologies, LLC (APT) was founded in 2002 in Stockton, CA for the manufacture of engineering plastic stock shapes for machined parts. The company focuses on production flexibility. It takes requests for special resins and certifications and specializes in custom products. APT's technical staff offers unmatched experience in applications support and materials selection and specifications. It maintains a full-service testing lab at its Stockton facility for evaluation of mechanical and physical properties, fabrication trials, and analytical testing.