📌 Product Description

Zinc Phosphate is an inorganic phosphate compound widely used as a high-performance, environmentally friendly anti-corrosion pigment and metal surface treatment agent. It reacts with metal substrates to form a dense, insoluble phosphate protective layer, effectively blocking moisture and oxygen penetration and inhibiting electrochemical corrosion. As a chromate-free alternative, Zinc Phosphate is extensively applied in industrial primers, protective coatings, and corrosion protection systems.

⚗️ Chemical & Physical Properties

• Chemical Name: Zinc Phosphate

• Molecular Formula: Zn₃(PO₄)₂

• Molecular Weight: ~386.1 g/mol

• Appearance: White to off-white fine powder

• Odor: Odorless

• Solubility: Insoluble in water; soluble in acids

• pH (aqueous suspension): Neutral to slightly acidic

• Thermal Stability: Stable under normal processing and storage conditions

📊 Specifications

Specifications can be customized upon request.

🏭 Applications

🔧 Industrial Anti-Corrosion Coatings

Used as an active anti-corrosion pigment in solvent-based and water-based coating systems. Zinc Phosphate forms a stable phosphate passivation layer on metal surfaces, effectively reducing corrosion caused by moisture, oxygen, and salts. Commonly applied in primers and intermediate coatings for steel structures, pipelines, storage tanks, and industrial equipment.

🚗 Automotive & Transportation Coatings

Applied in automotive OEM and refinish coatings to enhance corrosion resistance of metal body panels and components. Suitable for chassis primers, underbody coatings, and protective layers used in vehicles, railways, and commercial transportation equipment exposed to aggressive environments.

⚓ Marine & Heavy-Duty Protective Coatings

Widely used in marine and offshore coating systems due to its excellent resistance to humidity and saline conditions. Ideal for anti-rust primers and protective coatings for ships, offshore platforms, port facilities, and coastal infrastructure.

🧪 Metal Surface Pretreatment & Phosphating

Functions as a key component in phosphate conversion coatings for metal surface pretreatment prior to painting or powder coating. Improves surface uniformity, coating adhesion, and overall corrosion resistance, particularly for steel and iron substrates.

🎨 Powder Coatings & Water-Based Systems

Compatible with modern powder coating formulations and water-based coating technologies. Supports low-VOC and environmentally friendly systems while maintaining effective corrosion inhibition and long-term performance.

🏗️ Construction & Infrastructure Protection

Used in protective coatings for bridges, steel frameworks, towers, and industrial buildings. Provides reliable corrosion protection in outdoor, industrial, and high-humidity environments, extending service life and reducing maintenance costs.

⭐ Advantages

• Excellent corrosion resistance and rust inhibition

• Chromate-free and environmentally friendly

• Enhances coating adhesion and durability

• High chemical and thermal stability

• Compatible with solvent-based and water-based systems

• Low toxicity and safe handling properties

📦 Packaging & Storage

• Packaging: 25 kg kraft paper bags with PE inner liner; jumbo bags available

• Storage: Store in a cool, dry, and well-ventilated place

• Shelf Life: 24 months under proper storage conditions

• Handling: Keep containers tightly sealed and protected from moisture

📜 Regulatory Status

• REACH compliant (EU)

• RoHS compliant

• Not classified as hazardous under GHS

• Suitable for industrial applications under applicable local regulations

Why Choose Jiangsu Khonor Chemicals Co., Limited?

• ①Over 10 years of experience in chemical and food ingredient exports

• ②Stable supply capacity and competitive pricing

• ③Support for diverse molecular weights and performance requirements

• ④Samples available for quality testing

• ⑤Professional documentation: COA, MSDS, TDS, and export compliance

• ⑥Strong focus on global B2B markets

• ⑦Fast delivery and flexible logistics solutions

Ordering Information

For quotations, specifications, samples, or technical support, please contact:

Jiangsu Khonor Chemicals Co., Limited

Professional Chemical Supplier & Global Exporter

📧 Email: mengling@khonorchem.com

📞 Tel/WhatsApp/WeChat: +86-19851820586

🌏 WhatsApp：https://wa.me/8619851820586