Despite the same conditions, only some products do not have powder on them. I will explain the grounding resistance of electrostatic coating and the dirt on the fixtures.
Even though it's being blown under the same conditions, only this product does not have powder sticking to it. It's not the gun; the culprit might be the jig. ────────────── ■Cause of Occurrence Powder coating relies on static electricity to attract the powder, so proper grounding is essential. When paint accumulates on the jig, it becomes an insulator, preventing electricity from escaping. ■Truth In the field, it is common to use a single jig for dozens of consecutive applications. When the grounding resistance exceeds 1 megaohm, the adhesion efficiency visibly drops. The powder will not stick first to the lower or inner parts, leading to a misinterpretation of a partial thin film. ■Improvement Measures Regularly remove the coating from the jig using an incinerator or stripping tank to restore the contact points to their base material. Measure the grounding resistance before use, setting a passing condition of below 1 megaohm. Please utilize the jig management and electrostatic condition documentation.
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Construction method: Powder coating, solvent baked coating / Ground resistance standard: Below 1 megaohm / Film thickness: 40-80 microns / Baking temperature: 180-200 degrees / Jig management: Regular checks for peeling and base exposure points
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Parts for powder coating such as industrial machine covers, lighting fixtures, office furniture, and building materials. We have a track record of implementing grounding management standards for jigs as a countermeasure against adhesion unevenness and thin film complaints.
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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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