Passivant
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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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.
Passivation Zinc is the process of applying a protective layer to the surface of a metal, typically zinc or zinc alloys, to improve its corrosion resistance. This is achieved through the use of chemical solutions and chromate conversion coatings. These chemically react with the surface of the metal, forming a layer of zinc chromate and acting as a barrier against corrosion.
Product Specifications
|
Feature |
Details |
|
Package |
25kg bucket (lightweight, reinforced handle, screw-top lid with gasket) |
|
Appearance |
Light blue, translucent liquid (easy spot-checking during application) |
|
PH Range |
2.8–3.2 (ideal acidic environment for passivating zinc) |
|
Shelf Life |
12 months in cool, dry storage (away from sunlight and extreme temps) |
Properties
Accelerates the reconstruction of the protective chromium oxide layer.
Removes surface contamination and iron particles from the stainless steel surface.
Key Features
Strong Corrosion Resistance
Forms a dense oxide layer, blocking moisture and corrosive substances to extend zinc-coated part lifespan.
Better Paint/Coating Adhesion
Microscopic surface roughening improves paint/powder bonding for a longer-lasting finish.
Simple Application
Suitable for dipping, spraying, or brushing-ideal for large-scale production or small batches.
Packaging and Storage
Package: Plastic barrel (25kg/barrel,1000kg/barrel)
Storage: Suggested to store in cool, dry and well ventilated place; away from fire and heat source.
Certificates and Documents
As one of the leading passivant manufacturers and suppliers in China, we warmly welcome you to wholesale bulk passivant for sale here and get pricelist from our factory. All chemicals are with high quality and low price.
passivant