COMPOSITIONS AND PROCESS FOR METAL TREATMENT

摘要

43-21(6694)A COMPOSITIONS AND PROCESS FOR METAL TREATMENT Compositions and processes for activating metal surfaces prior to coating with a phosphate compound are disclosed. Colloidal alkyl benzene sulfonate salts are disclosed as a novel class of activating materials to replace titanium containing Jernstedt salt baths for treatment of metal surfaces prior to coating with a protective phosphate material.