Phosphating Coating Agent
Dongguan Weiqi Chemical Co., Ltd. was established in March 2019, at a time when China's chemical industry was undergoing rapid growth, with increasing demand for chemical products across various sectors. Founded by industry veterans with extensive experience in chemistry, the company is located in Qiaotou Town, Dongguan City, Guangdong Province. Qiaotou's dynamic industrial ecosystem and convenient transportation facilitate raw material procurement and product distribution.
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![Phosphating Coating Agent 25kg]()
Phosphating Coating Agent 25kgRobust Corrosion Barrier: Forms a crystalline phosphate conversion layer (3–15 μm) that shields steel, iron, and galvanized surfaces from rust, humidity, and chemical exposure.read more -
![Chemical Phosphating Coating Agent]()
Chemical Phosphating Coating AgentChemical Conversion Excellence: A proprietary blend of zinc phosphate, accelerators, and corrosion inhibitors that reacts with metal substrates to form a crystalline, self-healing coating (6–20 μm).read more
Why choose us
Strict Quality Control
Regular sampling and testing during production help identify any potential quality deviations. Final products undergo rigorous performance and safety tests before delivery. All measures adhere to international quality management standards, ensuring that customers receive only first-class chemical products.
Advanced Facilities
A dedicated R&D laboratory is equipped with sophisticated analytical instruments, enabling our R&D team to conduct in-depth research, develop new formulas, and optimize existing products.
Certificates and Documents
- SGS (Swiss General Standards)
- Hazardous Chemicals Business License
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Ether, Acetic Anhydride, Bromine)
- Non-pharmaceutical Precursor Chemicals Business Filing Certificate (Acetone, Toluene, Sulfuric Acid, Potassium Permanganate)
Our Services
We offer free returns and exchanges for quality issues within 30 days, provide SGS inspection reports, and offer long-term discounts to loyal customers.
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Physical Form |
Liquid |
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PH Nature |
Acidic |
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Application |
For non-metallic materials like carbon fiber, diamond, and ceramics prior to electroless copper or nickel plating |
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Process Step |
Used after sensitization |
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Recommended Temperature Range |
25°C - 50°C |
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Contact Time |
10 - 30 seconds |
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Packaging Options |
5KG, 10KG, 25KG per drum |
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Shelf Life |
Sealed storage guaranteed for three years |
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Manufacturer |
Direct from Yi Shun (OEM available) |
Active Ingredients: Zinc phosphate (8–12%), phosphoric acid (15–20%), nitrite accelerator (2–5%), and silicate-based corrosion inhibitors.
PH Range: 2.2–3.5 (acidic) for optimal film formation.
Free Acid/Total Acid Ratio: 1:8–1:12 to balance reactivity and film density.
Enhanced Adhesion: Significantly improves the bonding strength between copper alloy surfaces and paint.
Versatile Application: Suitable for various copper alloys like brass, red copper, and phosphor bronze.
Easy to Use: Can be applied through immersion or spraying at room temperature to 50°C.
Rapid Processing: Achieves optimal results in just 3 to 8 minutes.
Convenient Packaging: Comes in a 25KG/barrel, making storage and handling straightforward.
Application Scenarios
Industrial Manufacturing
Ideal for enhancing the surface quality of copper alloy components used in machinery and equipment.
Automotive Industry
Perfect for treating copper alloy parts before painting to ensure long-lasting finishes.
Electronic Enclosures
Provides a reliable surface treatment for copper alloy enclosures used in electronic devices.
Hardware and Fittings
Enhances the durability and aesthetic appeal of copper alloy hardware and fittings.
Certificates and Documents
As one of the leading phosphating coating agent manufacturers and suppliers in China, we warmly welcome you to wholesale bulk phosphating coating agent for sale here and get pricelist from our factory. All chemicals are with high quality and low price.