Electrocoating with lacquer contg. magnetic particles - using permanent magnet inside coating bath to improve corrosion protection of edges of substrate

摘要

Method of electrocoating s substrate with a lacquer consists of using a lacquer containing 0.01-30 wt.% magnetic particles having a magnetisation value of 0.3-90 emu/g and carrying out the coating in a magnetic field. The magnetisation value is pref. 10-70 emu/g. USE/ADVANTAGE - Esp. in automobile industry. Enables excellent corrosion resistance in the edge areas of the substrate.