Coating type outer water retaining structure and machining method thereof

The invention relates to a paintable outer water retaining structure and a processing method thereof.The paintable outer water retaining structure comprises an outer water retaining framework, a bright strip part and an end buckle, and is characterized in that the bright strip part and the end buckle are detachably arranged on the outer water retaining framework, the bright strip part adopts a stainless steel strip as a base body, and the bright strip part adopts a stainless steel strip as a base body; the substrate is treated by electrophoresis and spraying processes in sequence; the base body is made of a special mirror surface stainless steel material B442D-LB, and the base body is stamped and flanged to form a clamping structure to be connected with the outer water retaining framework in a clamping manner; and the outer water retaining framework is formed by co-extruding a PP (polypropylene) material and a TPO (thermoplastic polyolefin) material. The bright strip part convenient to assemble and disassembl