ANODIC ELECTROPHORETIC COATING METHOD

摘要

The invention relates to an anodic electrophoretic coating method. According to said method, a coating agent used in an anodic electrophoretic bath is compensated with an under-neutralised anodic refill material, said refill material consisting of A) a pigment-free aqueous binder component containing 40 to 70 wt. % solids and 0.5 wt. % of an organic solvent and with an meq value of 15 to 40 and B) a pigment-containing aqueous paste resin component containing 60 to 75 wt. % solids and 1.0 wt. % of an organic solvent and with an meq value of 5 to 15. The weight ratio of A) to B) is 1:1 to 4:1 and the mixture of A) and B) contains 45 to 73 wt. % solids and 0.75 wt. % solvent and has an meq value which is 50 to 70 % lower than that of the electrophoretic bath.