Explanation of countermeasures for poor adhesion and paint peeling due to the unique oxide film of aluminum.
One of the causes of paint peeling in aluminum products is the oxide film that forms on the surface. Aluminum oxidizes simply by being exposed to air, which hinders the adhesion of the paint film. Even if the surface appears clean, a thin oxide film is formed. If acid cleaning or chemical treatment is not performed, the adhesion significantly decreases. This is especially important for materials that have been stored for a long time. In actual practice, the results can vary greatly depending on the condition of the material. We also provide detailed examples of improvements in aluminum peeling in publicly available materials.
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We are not just a "subcontracted painting factory." Established in 1958, our company has a foundation of painting technology and also specializes in chemical treatment, stripping, and cleaning, functioning as the "external surface treatment department" in your organizational chart. Based on our philosophy of "preparation is eight-tenths of the work," we emphasize participation from the "upstream process" before the drawings are finalized. We conduct test painting on a wide range of metals and difficult materials, and we produce the entire process from assembly, packaging, to delivery, thereby reducing your management workload. Additionally, by being able to perform zinc phosphate treatment in-house, we achieve stable painting quality. Furthermore, our micro-heating stripping technology, which does not use chemicals, maintains the electrical state of the "jigs (hangers)" that influence painting quality. Our approach of "pre-treatment determines painting quality" ensures the stability of the paint film during mass production. Rather than simply "applying specified standards," we work backwards to achieve optimal painting specifications and prevent scratches during transportation, sparing no effort in thorough discussions from the outset. This diligent preparation is the shortest path to preventing rework and minimizing total costs. From the development stage, please utilize the expertise of our specialists as part of your production line.
