No matter for pp filter press or cast iron filter press, the painting is the last step for the filter press producing, and it influences the filter press corrosion resistance performance and the appearance. And for the painting, it also has many steps. And for the each step, we should select the different coats and strictly follow the requirements to operate. Thus what is the detailed operation for the painting?
First, cleaned the metal surface of filter press machine, then paint the first undercoat, which can better adhere with the metal and it has good rust resistant performance. After that, paint the putty to make the filter press metal surface smoother and flatter. Then use the sand paper to polish, that increase the adhesive force for the next painting step. Then it will be painted by the intermediate coat and the finishing coat.
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