When the painted product arrives, there are scratches and marks from the packaging material. The causes can be not only due to transportation but also insufficient curing or cooling. Here’s how to identify them.
When I opened the box of the painted product, there were scratches on the surface. Don't you think it's due to transportation? 【First, please look here】 □ Pressing with a nail leaves a mark → Insufficient curing has left the paint film soft □ The pattern of the packaging material is imprinted on the paint surface → It was packaged before it cooled completely □ All parts have scratches in the same location → The packaging material or dividers are making contact 【Why does this happen?】 A paint film that has insufficient curing and cooling may appear dry but is prone to scratching. If the packaging makes contact in the same way, the same areas will rub against each other during transport. 【Countermeasures you can implement starting today】 1. Allow the product to cool to room temperature before packaging after curing 2. Use dividers that prevent parts from touching each other 3. Add a check by pressing with a nail upon receipt 【Free Resource】 We have compiled how to identify painting troubles, including scratches, in the related catalog "Eiho Kogei_Painting Trouble Introduction_Identification and Countermeasure Guide." You can download it for free from this page.
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basic information
Defect type: Scratches, marks from packaging materials. How to identify: Marks from pressing with a nail, transfer of patterns, location of scratches. Management items: Baking conditions, cooling time, packaging and dividers.
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Acceptance inspection of painted products, quality meetings with subcontractors, review of shipping and packaging methods. Handling complaints from sales representatives and quality assurance personnel.
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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.
