FAMILY / EN
Pretreatments: Iron and Zinc Phosphates
Our phosphates are used to improve corrosion resistance and appearance of metal surfaces.
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Documented applications
The Phosphating Process
The Phosphating Process
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Phosphating is a chemical conversion coating process that creates a crystalline or amorphous phosphate layer on the metal surface. This layer improves paint adhesion, corrosion resistance, and overall coating durability. A typical phosphating line follows these 5 steps:
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Degrease
Degrease
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Remove oils and contaminants
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Rinse
Rinse
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Clean water rinse
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Phosphate
Phosphate
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Apply phosphate coating
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Rinse
Rinse
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Clean water rinse
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Seal
Seal
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Final seal rinse
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Iron Phosphate
Iron Phosphate
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Iron phosphates produce an amorphous coating layer that provides good paint adhesion and moderate corrosion resistance. They are widely used in powder coating and liquid painting lines for appliances, automotive parts, furniture, and general metal fabrication. Iron phosphates are economical and easy to control.
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Zinc Phosphate
Zinc Phosphate
Fuente pública · 2026-11-10 · block:16:h2
Zinc phosphates produce a crystalline coating that offers superior corrosion resistance and paint adhesion compared to iron phosphates. They are the preferred choice for automotive, heavy equipment, and other demanding applications where maximum coating performance is required.
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Products with individual evidence
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