The invention relates to an anticorrosion composite coat for steel
metal fastener used in the marine environment, the structure of the composite coat consists of a bottom layer and a
surface layer, wherein the bottom layer is coated with lamellar
metal zinc dust and lamellar
metal aluminum
powder which are adhered by
adhesive and mixed together, the
surface layer is coated with metal aluminum power and reshaping
epoxy resin which are mixed together. The invention includes the procedures as follows: the lamellar metal
zinc dust and the lamellar metal aluminum power are mixed, and then are added into the inorganic aquosity splicing agent to be stirred and mixed uniformly, and then are soaked into and coated on the anticorrosive metal steel pieces, then are processed by baking and
sintering and solidifying to achieve the first step for
coating the bottom layer, then the
coating and solidifying process is repeated to achieve the second step for
coating the bottom layer; additionally, the lamellar aluminum power and the reshaping
epoxy resin are mixed to be the
organism epoxy aluminium rich paint, the formed bottom layer is made into the
surface layer by the different parameter and the same step of the first step of the bottom layer, the method of the invention is of high causticity and strong protection, thereby the base body of the steel
fastener can be protected, and the invention is of good abradability, beautiful appearance and ideal decoration.