抄録
With remarkable development of zinc diecast in recent years, plating on such diecast is becoming popular. However, not all the plating on zinc diecast has been perfect; there have been a number of plating works that have easily been corroded or peeled off. Defects of this nature are difficult to remedy under the present technical level. Howerver, the plating on diecast is in increasing demand in the market. Under the situation, the following experiments were conducted with an object of preventing corrosion of the plated surface.
The experiments consisted of giving a clear lacquer coationg over the plated surface and checking on the adhesiveness and the liability to corrosion under different circumstances. In these experiments, a variety of clear lacquer were tried to see which variety was the most effective.
As a result, vinyl lacquer was found to be the most practically efficient. The durability of the plating thus coated was nearly double that of the plating without anti-corrosion lacquer coating.
