The 'pre-treatment' that determines 90% of coating quality and zinc phosphate coating.
Many of the painting defects are hidden in the previous processes. This explains the mechanisms of chemical treatment that influence the durability of automotive parts.
[Cause of Occurrence] In metal painting, attention tends to focus on "how to paint," but in reality, most of the quality is determined by the time the painting process begins. Neglecting pre-treatment can lead to simultaneous occurrences of various defects such as poor adhesion, rust, and blisters. [Truth] Even using excellent paint is meaningless without the "anchor effect" that firmly bonds the metal material and the paint film. To meet the harsh durability required for automotive parts, it is essential to form a uniform and dense zinc phosphate film (conversion coating) on the surface of the material. [Improvement Measures] It is important to regularly measure the total acidity, free acidity, and concentration of accelerators in the conversion treatment solution twice a day to control the size of the film crystals. A daily management manual for pre-treatment solutions that can be used immediately on-site can be downloaded from the button below. [Summary] The true foundation of painting is pre-treatment, and precise film management is the lifeline of high-durability automotive part painting. Eiwa Kogei Co., Ltd. thoroughly manages pre-treatments, including zinc phosphate coating, to achieve high-quality painting.
- Company：永和工芸
- Price：Other
