Zinc plating trivalent blue and white passivator

Galvanized trivalent chromium blue zinc water BZ-212 is a unique trivalent chromium blue zinc water specially designed for zinc coating. When it is used in rolling plating, the first white spot appears in salt spray test for more than 72 hours, and when it is used in hanging plating, Salt spray test for more than 96 hours before the first white spot. this system can form a dense blue "chromium" skin film on the surface of the alkaline, acidic, and cyanide galvanized coating.

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Product Description

Product Name: High corrosion resistance trivalent chromium blue passivator Packing specification: 30kg/barrel
Product appearance: blue-green liquid Smell: mild
Specific gravity: 1.24-1.26 Solubility in water: all dissolved
Storage: ventilated and dry place Shelf life: 2 years

Instructions for use

BZ-212 high corrosion resistance trivalent

chromium blue passivation agent

30-80 ml/L




30-70 seconds

PH value



Mechanical stirring or air stirring


60-80℃ for 10-25 minutes

Product features



Free of hexavalent

chromium,free of

lead and other harmful


Green products,passed SGS product testing and certification,comply with ROHS,ELV regulations,export to Europe and the United States without risk of return.





Passive film blue and



The color of the passivation film is bright and beautiful,uniform and bright,and

the blue light is strong,and it does not

have color mixing,and does not fade.


Long-term resistance

to air stop,no color

change and no


Using high-tech independently developed

by Bigely,the passivation film is firm and meticulous. When it is parked for 20-30 seconds,the blue appearance will not

change color,and the holes or recesses

will not yellow.





Excellent corrosion


The TBC active ingredient is added to the product,which has good anti-rust ability.

When the thickness of the zinc layer is 5-8 microns,it is resistant to NSS > 96 hours,

which can meet the functional

requirements of high-end hardware



Superior resistance to


High tolerance to iron impurities and zinc impurities,which can reduce the time of shutdown processing and the loss of passivating agent,saving costs.



Low consumption and


Source manufacturer,concentrated type,

durable and affordable.

Scope of application

About us

Qualification strength

R & D strength

Cooperation brand


1. Q: Do you make the products yourself? Are you a trader or a manufacturer?

A: Yes, the products are produced by our company. Our company is a manufacturer focusing on the R&D and manufacturing of environmental protection electroplating additives. Our factory has 5000 square meters with an annual capacity of 15000 tons.


2. Q: Can your company send samples for trial?

A: We can provide samples for trial.


3. Q: What is the quality of your products?

A: Our company all products core raw materials is used by Germany BASF, American Dow Chemical and other international brand products. The production process is strictly in accordance with the ISO9001 quality management system, from the incoming inspection, product inspection, according to the strict inspection standard, ensure that every drop of products qualified. Product quality you can rest assured, like BYD, Huawei, Foxconn such enterprises are also using our products.


4. Q: How long is the shelf life of your products?

A: The shelf life of our products is two years. If you do not use up the products within a short time after you buy them, we suggest you store them in a cool place, not in the sun or in a high temperature environment.


5. Q: Are your products environmentally safe?

A: Our products have passed the SGS test and are recognized as "Green and Environment-friendly Promotion Products". Many auto parts and electronic products which use our products can pass the strict environmental protection test when they are exported to Europe and America. Therefore, we can be trusted in terms of environmental protection and safety.


6. Q: Can your company provide technical services?

A: Yes, our company has a technical service team of more than 10 people. The technical engineers all have more than 20 years' experience in electroplating factory. They can provide customers with comprehensive technical of pre-sales and after sales.


7. Q: Is it possible to visit your company?

A: Yes, of course. You are very welcome! We can meet you at Jieyang airport, If you can come to our city. Also you can visit our factory through live video.


8. Q: Can you customize products according to our needs?

A: Yes, our company has research and development strength, the product formula derived from Europe and the United States laboratory, European and American engineers technical support, work together with domestic universities. Our company has a member of Guangdong province expert enterprise workstation, Shantou university science and technology correspondent workstation, Jieyang city environmental protection engineering research center for electroplating additive.Therefore, it can meet all kinds of customized requirements proposed by customers.

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