The BR-IIIC phosphate coating agent is widely used in pre-phosphorization treatment of automobiles, electric appliance, instrument and metalwork. It is characterized by fair working speed, exceptional stability, good rinsing and anticorrosion performance. It may be also be used for phosphorizing of various ferrous metals, forgings and castings prior to painting. Also serve to complete the baking varnish applying, plastic spraying, electrophoresis and painting processes.