PVDF/Kynar Cam Couplers AIMS Fasteners & Fittings All products PVDF/Kynar Cam Couplers Information about PVDF/Kynar Cam Couplers AIMS’ acid resistant PVDF (Kynar) cam operating couplers offer high resistance to abrasion and temperature variability. The longest lasting type of cam couplers, they are the best choice for corrosive chemical, ozone and high radiation applications. Type A Type B Type C Type D Type E Type F Type G Type H