I have summarized the basics of humidity management from the rainy season to summer. This directly relates to the prevention of pinholes and rust.
Metal baking paint tends to have an increased defect rate when humidity exceeds 70 percent. Special attention is required during the period from the rainy season to summer. ────────────── ■ Causes In high humidity environments, multiple defects such as insufficient drying after degreasing, condensation after pretreatment, and poor curing after painting are likely to occur simultaneously. ■ Truth Humidity is not visible, making it less consciously managed on-site compared to temperature. However, the root of many defects is often hidden in the effects of moisture due to humidity. ■ Improvement Measures Install a hygrometer in the factory and record daily data. Combine the use of dehumidifiers, extended drying times, and a review of storage conditions. Our company conducts seasonal management based on a humidity level of 70 percent or lower. Please refer to the materials for specific humidity management strategies.
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basic information
Humidity management standards: Below 70 percent / Use of dehumidifiers / Extended drying time support / Seasonal quality management sheet provided.
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Applications/Examples of results
Automotive parts, aluminum die casting, iron parts, mass production painting from the rainy season to summer.
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Company information
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.
