Does replacing the material with iron cause rust? Rising non-ferrous prices and anti-rust coatings.
Non-ferrous metals such as copper rose by 43 percent year-on-year in August 2026. This explains the concept of anti-corrosion coatings necessary when replacing materials with iron.
To reduce material costs, I would like to replace the parts' materials with iron. However, aren't you worried about rust if you switch to iron? 【What is happening now】 In the corporate price index for August 2026, non-ferrous metals rose by 43.3 percent compared to the previous year. Prices continue to rise, particularly for copper, leading to an increase in considerations for material reviews. 【Points to check when switching to iron】 □ Is the location indoors or outdoors? → If outdoors, a combination of chemical treatment and painting is essential. □ Does the shape have many corners or holes? → Corners will have a thinner film thickness, becoming a starting point for rust. □ Is it acceptable if the weight changes? 【How to assemble rust prevention】 1. Include chemical treatment such as zinc phosphate in the pre-treatment. 2. If in a harsh environment, apply paint over zinc plating. 【Free materials】 We have compiled the combinations of chemical treatment, zinc plating, and painting in the related catalog "What Eiwa Can Do for Metal Coating." You can download it for free from this page.
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Theme: Rise in non-ferrous metal prices (August 2026, 43.3 percent year-on-year) and material changes. Anti-corrosion specifications: Chemical treatment (such as zinc phosphate), zinc plating + painting, corner film thickness.
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Design department, purchasing personnel, and sales representatives considering changes to the materials of parts. Examination of rust prevention specifications for iron parts.
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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.
