Color passivation agent for zinc-nickel alloy plating

Zn-324 is a colorful trivalent chromium passivation film for electroplating zinc-nickel alloy workpieces. This process can produce bright, light-colored (color between yellow and green) film, and has high corrosion resistance. For traditional multicolored hexavalent chromium film passivation, this treatment provides users with a safer choice. It can be applied to hanging and rolling process applications.

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Product Description

Product Name: Trivalent chromium color passivator for zinc-nickel alloy Packing specification: 25kg/barrel
Product appearance: dark purple liquid PH value: below 1.0
Specific gravity: 1.30-1.40 Solubility in water: all   dissolved
Storage method: Ventilated and dry place Shelf life: 2 years

Instructions for use






20-60 seconds

PH value



Mechanical stirring or air stirring


60-80°C 10-25 minutes

Product features



Does not contain

hexavalent chromium,

lead, cadmium and

other harmful heavy


Green product, passed SGS product test

and certification

Comply with ROHS and ELV regulations,

export smoothly



diverse appearance needs of customers



Bright and beautiful

color, uniform


Passivation film is transparent and

bright rainbow color, which can be

adjusted to light yellow, purple, bright

green and other colors Can meet the

diverse appearance needs of customers


Low working temperature,

Color appears fast

Operation temperature is 20-50℃,

energy saving and consumption reduction

  Operation temperature is 20-50℃


auto parts

Excellent corrosion


TBC active ingredients are added to the

product, which has strong anti-rust

performance. When the thickness of the

coating layer is ≧5-8 microns, the

resistance to NSS>350 hours,

can meet the functional requirements

of auto parts


Long-term storage,

the passivation film

is not easy to return

hexavalent chromium

It can easily pass the boiling test and SGS

test. Products that are passivated are not

easy to produce hexavalent chromium

after long-term storage, avoiding the risk

of customer return

  passivation film


High temperature Resistance



High temperature


When the passivation film is baked at a

temperature of 200°C, the appearance

is rarely changed, and its NSS resistance

can still exceed 350 hours

Scope of application

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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