
Zinc Phosphate -25KG
Zinc phosphate is an inorganic corrosion-inhibiting pigment widely used in metal primers, coatings, and surface treatments. It provides excellent adhesion, enhances corrosion resistance, and offers a non-toxic alternative to traditional chromate-based systems.
CAS Number
7779-90-0
Synonyms
zinc orthophosphate, zinc phosphate pigment, zinc phosphate tetrahydrate (for hydrated grades), tri-zinc phosphate
Chemical Formula
Zn₃(PO₄)₂ (anhydrous)
Zn₃(PO₄)₂·4H₂O (tetrahydrate form)
Appearance
White to slightly off-white fine powder

Uses
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Anti-corrosion pigment in metal primers and industrial coatings
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Protective coatings for steel, galvanized steel, and aluminum
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Component in epoxy, polyurethane, and alkyd coating systems
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Used in automotive paints and heavy-duty industrial coatings
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Passivation agent in metal pretreatment
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Provides strong adhesion between metal surfaces and topcoats
Key Features
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Excellent corrosion resistance and metal passivation
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Non-toxic alternative to lead/chromate pigments
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Enhances coating adhesion and durability
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Good compatibility with various resin systems
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Stable, insoluble in water, and good long-term performance
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Reduces under-film corrosion and blistering
SDS Summary
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Hazard Classification: Low to moderate hazard depending on grade
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Inhalation: Dust may irritate nose, throat, and respiratory tract
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Skin/Eyes: May cause mild irritation; avoid direct contact
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Ingestion: Low toxicity but may cause stomach discomfort
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Fire Hazards: Non-combustible inorganic solid
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Handling: Avoid dust generation; use gloves, goggles, and adequate ventilation
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Storage: Keep container tightly closed; store dry and cool
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Environmental: May be harmful to aquatic ecosystems in large amounts; limit release into waterways
| Weight | 25 kg |
|---|
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