Eco-friendly alkaline zinc plating additive
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  • Eco-friendly alkaline zinc plating additive

Eco-friendly alkaline zinc plating additive

A cyanide-free advanced technology addresses the brittleness issue in high-brightness coatings caused by excessive thickness, with a two-component additive system that separately controls dispersing power and brightness. With excellent dispersing power, the coating thickness ratio between the high-current zone (4 A/dm²) and the low-current zone (0.2 A/dm²) is 1.2–1.5, reducing zinc consumption. The coating achieves a mirror‑like finish comparable to bright acidic zinc; blue‑white passivation remains free of yellowing. For barrel plating, a 20 µm‑thick coating can be bent arbitrarily, and after 2 hours of baking at 200°C followed by rapid cooling, no blistering occurs. The passivation film exhibits superior adhesion compared to acid zinc, with outstanding high‑temperature resistance—products can still be produced normally even in a 40°C plating bath. Its deep‑plating capability surpasses both cyanide‑free zinc and acid zinc, while offering a broad operating window and strong resistance to impurities. The bath can be prepared using ordinary caustic soda and tap water, and the additives are stable. It is suitable for both barrel and rack plating, easy to maintain, non‑toxic, and straightforward to treat as wastewater.

Summary:Haolun Environmental Protection Technology manufactures industrial laundry auxiliaries, electroplating brighteners, trivalent chromium passivation and nano sealants. Our cyanide/lead/cadmium/phosphorus-free additives hold SGS certification and ISO certifications, serving automotive & electronics clients with professional technical support.

Product Details

A cyanide-free new technology addresses the brittleness of high-brightness coatings caused by excessive thickness, with a two-component additive system that independently controls dispersing power and brightness.

High dispersing power; in the high-current region (4 A/dm²) and the low-current region (0.2 A/dm²), the coating thickness ratio is 1.2–1.5, resulting in reduced zinc consumption.

The coating achieves a mirror‑like finish, comparable to bright acidic zinc; the blue‑white passivation does not yellow. For barrel plating, a 20 µm‑thick coating can be bent freely, and after 2 hours of baking at a constant 200°C followed by rapid cooling, no blistering occurs.

The passivation film exhibits superior adhesion compared to acid zinc, with excellent high‑temperature resistance; even at 40°C, the plating bath continues to produce qualified products. It offers deep‑plating performance that surpasses both cyanide zinc and acid zinc, a broad operating window, and strong resistance to impurities. The bath can be prepared using ordinary caustic soda and tap water, and its additives are highly stable. It is suitable for both barrel plating and rack plating, with easy maintenance, non‑toxicity, and straightforward wastewater treatment.

Guangdong Haolun Environmental Protection Technology Co., Ltd. focuses on the development and manufacture of fine chemical products for industrial surface treatment. Main product series:

Industrial laundry chemical auxiliaries series
Electroplating brightening additives series
Environmentally friendly trivalent chromium passivation series
Nano-sealants series

Our electroplating additives adopt trivalent chromium system, free of cyanide, lead, cadmium and phosphorus, and have obtained SGS environmental certification. All products are produced and managed under ISO 9001 quality management system, ISO 14001 environmental management system and OHSAS 18001 occupational health and safety management system.

We cooperate with well-known laboratories in Europe and North America for joint R&D, to continuously launch eco-friendly, energy-saving and high-efficiency products to meet modern industrial production requirements. Our products are widely used and trusted by customers including Huawei, GAC Group, BYD, Changan Automobile and General Electric.

We provide one-stop technical services including factory design, process optimization, raw material compatibility test, plating bath analysis and after-sales technical support. With sales and service outlets across China, we deliver rapid technical support and solve various difficult electroplating problems for customers.

Keywords:

Electro-galvanizing additive

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Frequently Asked Questions

In which year was Guangdong Haolun Environmental Protection Technology Co., Ltd. established?


The company was founded in 2006.

What is the core business of Haolun Environmental Protection?


The company is a high-tech enterprise integrating R&D, manufacturing, sales, and service. It specializes in the production of chemical auxiliaries, metal surface treatment agents, and electroplating additives, and serves as a supplier of high-quality electroplating chemicals.

What is the core development philosophy of Haolun Environmental Protection?


The company believes that the electroplating process must embark on a sustainable path that is environmentally friendly, energy-efficient, and highly productive, in order to meet the production and development needs of modern industry.

What is Haolun Environmental’s business model?


Adopting a business model of “international R&D and domestic production and sales,” the company collaborates with renowned laboratories in Europe and North America to drive product development.

What environmental advantages do Haolun Environmental’s products offer?


We have developed a series of environmentally friendly electroplating additives—cyanide-free, lead-free, phosphorus-free, and trivalent chromium-based—filling a domestic technological gap and obtaining SGS environmental certification.

What management system standards does Haolun Environmental comply with?


Comply with and meet the requirements of the ISO 9001 Quality Management System, the ISO 14001 Environmental Management System, and the OHSAS 18001 Occupational Health and Safety Management System.

What is Haolun Environmental Protection’s business philosophy?


Adhering to the business philosophy of “technology leadership, service first,” we deliver high-quality products alongside efficient, attentive service.

What technical services can Haolun Environmental Protection provide to its customers?


This encompasses factory design, process optimization, raw material compatibility, plating bath analysis, and after-sales technical support, with the goal of eliminating challenges in metal surface treatment.

How is Haolun Environmental’s sales and service network structured?


Centered in the Pearl River Delta, we have established multiple sales and service outlets across the country to provide customers with efficient, prompt technical support.

What is Haolun Environmental Protection’s business philosophy?


Adhering to the corporate philosophy of “integrity as the foundation, honesty and openness in business, pragmatism and innovation, and the pursuit of excellence,” we look forward to joining hands with all sectors to create a brilliant future together.

We look forward to hearing from you.

With technological innovation at our core and quality management as our foundation, we are committed to delivering high‑quality products and services to our customers.

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