Special powder coating for the new type of radiator, which can eliminate the defects caused by the special structure of the radiator, such as bubble, shrinkage, etc.. Solve all kinds of problems and problems of product surface. Can improve the hardness of the coating, enhance the anti scratch performance, improve the adhesion of the two times, according to different products can be achieved one-time spraying, a high rate of powder. It can eliminate the difficulties caused by the electrostatic shielding, especially the three column type heat sink connection part and the two spray of the middle column.