Are you overlooking the drying process after cleaning? In fact, residual moisture may be causing pinholes and blisters.
The drying process after cleaning is an important management item that affects painting quality. However, on-site, there are often cases where it is judged that "there is no problem because it looks dry." In reality, there may be fine moisture remaining on the surface of the material or inside gaps. If painting is done in this state, moisture can evaporate during curing, leading to pinholes, blisters, or delamination of the paint film. This is actually a point that is often overlooked. Complex-shaped parts tend to retain moisture inside. Furthermore, in drying ovens, temperatures are often managed at around 80 to 120 degrees, but there may be cases where the oven temperature does not match the product temperature. A common misconception on-site is the belief that "it's safe because it has passed through the drying oven." By reviewing the drying conditions, there are many cases where quality can be stabilized. Actual improvement cases are also detailed in publicly available materials.
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Metal surface preparation before painting
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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.
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