GaN EPI Wafer

GaN Process Wafer

GaN FET

GaN PD Charger

Anti-static Coating

Non-toxic Anti-rust Fasteners

▌4  Four Major Advantages 

GaN Power Technology’s environmentally friendly trivalent chromium/non-toxic chromium-free passivation agent provides comprehensive anti-corrosion protection for screw fasteners. The continuous and dense passivation film can effectively prevent the intrusion of chloride ions , resist the erosion of salt spray and acid rain , and extend the life of the product .

Different from traditional coatings, the GaN Power Technology passivation film forms an interface chemical bond with the coating film, making the coating more stable and with good adhesion. By adjusting the physical and chemical properties of the coating, customized protection solutions can be provided according to different environmental requirements to ensure that screw fasteners can maintain excellent performance under various conditions.

Long term corrosion resistance

Non-toxic anti-rust fasteners can withstand 4,000 hours of salt spray testing, ensuring long-term use of your products without worrying about rust problems and making maintenance more economical.

Process advantages

The process has a low reaction temperature and requires fewer coatings to achieve the required performance requirements. It is more energy-saving and carbon-reducing than traditional processes.

Environmentally friendly features

Non-toxic and anti-rust fasteners comply with environmental standards, use environmentally friendly materials and reduce the impact on the environment during the manufacturing process, so that your products not only have excellent performance, but also comply with environmental requirements.

Price competitiveness

Non-toxic and anti-rust fasteners have excellent performance and are competitively priced, providing you with high-quality products without excessive cost, making your investment worthwhile.

Case sharing

Traditional hexavalent chromium and traditional trivalent chromium are often used in anti-rust fasteners, but they involve environmental pollution and health risks. In contrast, GaN Power Technology’s environmentally friendly trivalent chromium/non-toxic chromium-free products have environmental advantages , as well as excellent corrosion resistance and price competitiveness . Therefore, GaN Power Technology’s environmentally friendly trivalent chromium/non-toxic chromium-free is a more sustainable, safer and more effective choice, providing customers with products that meet environmental standards while ensuring excellent performance and cost-effectiveness.

Compare items

Traditional hexavalent chromium + coating

Traditional trivalent chromium + coating

GaN environmentally friendly trivalent chromium + coating

GaN non-toxic chromium-free + coating

toxicity

poisonous

only legal compliance

More environmentally friendly

non-toxic

cost

100%

120%

95%

95%

Anti-rust aging

2500H

1000H

3000H

2000H

coating

5Layers

3Layers

2Layers

2Layers

▌Introduction To Technical Principles

Material　＞

Molding　＞

Heat Treat ＞

Electroplating　＞

Coating　＞

Finished

  1. Continuity and density of passivation film:
    During the passivation film formation process, GaN Power’s environmentally friendly trivalent chromium/non-toxic chromium-free passivation agent can form continuous and dense passivation through special catalytic effects under a wide pH value. membrane.

  2. Passivation film properties:
    Chloride ions and oxygen in neutral salt spray are the main causes of corrosion. Corrosion will cause the passivation film to be invaded and destroyed by tiny chlorine ions, causing white rust and then red rust.GaN Power’s environmentally friendly trivalent chromium/non-toxic chromium-free passivation film can effectively prevent the intrusion of chloride ions within 120 hours of neutral salt spray and does not produce white rust oxide. When white rust oxide is generated, it will hinder the intrusion of chloride ions. Prevents red rust from forming in the short term.

Material　＞

Molding　＞

Heat Treat ＞

Electroplating　＞

Coating　＞

Finished

  1. Bonding force between primer and passivation film:
    General paints form a similar physical coating on the trivalent chromium passivation film, while GaN Power’s environmentally friendly trivalent chromium/non-toxic chromium-free passivation film can form an interface chemical bond with the coating film, making the The coating film is evenly and tightly combined to improve the test performance for neutral salt spray and acid rain.

  2. Physical and chemical properties of the coating:
    The performance of the coating depends on the selected resin and additives. Different coating formulas are given to screw fasteners according to different environmental requirements.

▌Manufacturing Process

GaN Power Technology has clear advantages in the metal manufacturing process. First of all, the environmentally friendly trivalent chromium/non-toxic chromium-free passivation agent and electroplating solution developed by it have environmentally friendly properties , avoid environmental pollution, and meet modern environmental protection requirements. 

Secondly, GaN Power’s products can form a continuous and dense passivation film during the manufacturing process, which effectively prevents corrosion and oxidation of metal products during use and improves the durability of the product . In addition, GaN Power’s baking paint technology can protect metal surfaces and increase their weather resistance and aesthetics. In general, the non-toxic, environmentally friendly and durable solutions provided by GaN Power Technology in the metal manufacturing process enable products with higher quality and reliability.

Fastener manufacturing flow chart

GaN Power Technology

 01 

 Material

 02 

Forming

 03 

Heat Treat

 04 

Plating Solution

 05 

Passivating Agent

GaN Power provides environmentally friendly trivalent chromium and non-toxic chromium-free options, with excellent anti-corrosion performance and environmental protection characteristics.

 06 

Coating

GaN Power provides coating solutions, including one-coat, two-coat and three-coat options, to provide high-quality protection for metal products.

07 

  Finished

▌Service Cases

We focus on environmentally friendly, durable and reliable solutions when it comes to providing non-toxic and anti-rust fastener services to our customers. Through our unique passivation technology, it has been successfully used in various industries, from construction to the automotive industry, ensuring the long-term use and environmental friendliness of our customers’ products. Whether it is compliance with environmental standards or the pursuit of product performance, we can provide the best solutions and bring lasting value to our customers.

Case sharing

The following cases demonstrate the superior performance of GaN Power technology in the field of non-toxic and anti-rust fasteners. By manufacturing and verifying electro-galvanized products, we successfully passed the ASTMB117 120-hour white rust-free test , and surprisingly achieved a red rust-free record of more than 1,000 hours . In addition, our products performed well in the acid rain test, reaching 42 cycles, proving their excellent weather resistance. Through the comparison of passivation tests on galvanized steel sheets, we further established the leading position of Hong Gallium technology in the field of rust prevention. These successful cases fully demonstrate our company’s commitment to environmentally friendly, efficient and reliable solutions, and bring considerable value and confidence to customers.

The only trivalent chromium plating product in the industry

Exhibiting high salt spray for more than 900 hours without red rust.
Produced and verified in April 2022 :
The electro-galvanized product passed ASTMB117 without white rust for 120 hours and without red rust for more than 1,000 hours.

screw co., ltd.

Acid rain test: up to 42 cycles
Surface treatment conditions: plating thickness 5um, two coats of paint, assisting in the development and verification of acid rain DIN50018 (2.0) performance.

Galvanized steel plate passivation test comparison

Day 1 : Original galvanized steel products ( GaN and Vietnam )
Day 1 : Original galvanized steel products ( GaN and Vietnam )