Passivated Chrome-Free VI (Cr6+)
AD Chemicals is a leading company in the research and development of chromium (VI)-free metal surface treatment solutions, providing advanced surface conversion and passivation technologies that meet international environmental standards such as RoHS and REACH. With years of experience in the surface treatment industry, AD Chemicals continuously improves its technology to enhance corrosion resistance, improve durability, and extend the lifespan of aluminum, galvanized steel, and many other metals.
As part of our commitment to quality and innovation, we focus on Aluminium Finishing techniques that enhance the durability and appearance of metal surfaces.
In the Vietnamese market, DK Chemicals is the official distributor and provides technical consulting services, implementation support, and optimization of surface treatment processes for customers in the manufacturing, metalworking, electronics, construction, and automotive industries. With a team of experienced technicians, DK Chemicals works alongside businesses in selecting suitable solutions, improving product quality, and meeting increasingly stringent requirements for performance, environmental protection, and occupational safety.
AD Chemicals’ solutions have been successfully implemented in numerous factories worldwide and have received high praise for their superior corrosion resistance, production stability, ability to replace hexavalent chromium (Cr6+) technology, and flexibility in application across a wide range of materials and production lines.
Why Choose Chrome-Free Technology?
Modern manufacturing trends are gradually replacing hexavalent chromium (Cr(VI))-containing technologies with more environmentally friendly solutions. Chromium-VI-free passivation technologies offer several advantages, including:
- Increases the corrosion resistance of metal surfaces.
- Improves the adhesion of the paint coating.
- Meets international environmental standards such as RoHS and REACH.
- Reduce the risk of exposure to toxic chemicals for workers.
- Supporting businesses in developing green and sustainable production processes.
Comprehensive Surface Treatment Solutions from AD Chemicals
AD Chemicals offers a wide range of surface treatment products for:
- Pre-treatment before powder coating.
- Pre-treating with solvent-based paint.
- Passivation for aluminum and aluminum alloys.
- Anodizing technology.
- Solutions for enhancing adhesion and corrosion resistance.
Each solution is researched and tailored to the specific technical requirements of each customer, optimizing production efficiency and improving the quality of the final product.
Commitment to Quality and the Environment
All products undergo rigorous quality control before being released to the market. We prioritize the use of environmentally friendly materials to minimize impact on the ecosystem and contribute to public health protection.
In addition to providing products, AD Chemicals’ team of engineers and experts is always ready to support customers in selecting the right technology, optimizing surface treatment processes, and improving the operational efficiency of their production lines.
Technical Support and In-depth Training
We regularly organize training programs, technical workshops, and specialized consultations to help our clients stay up-to-date on the latest trends in metal surface treatment. This also provides an opportunity for businesses to exchange practical experiences and find solutions that suit their production needs.
Benefits of Using AD Chemicals’ Solutions
- Increased corrosion resistance.
- Enhancing the aesthetic appeal of aluminum and metal products.
- Improves the adhesion of the coating.
- Extends product lifespan.
- Reduce maintenance and repair costs.
- Meets international environmental standards.
- Enhance competitiveness in the market.
With their experience, expertise, and commitment to quality, AD Chemicals and DK Chemicals aim to become reliable partners for businesses in the metal surface treatment sector, contributing to the creation of sustainable, safe, and environmentally friendly products.
Frequently Asked Questions
What is passive mode without Chrome VI?
Chrome VI-Free Passivation is a process of creating a chemical protective film on metal surfaces to increase corrosion resistance without using hexavalent chromium (Cr6+). This technology typically uses silicate, zirconium, or titanium-based compounds to form a thin, environmentally friendly coating that complies with international chemical safety regulations.
Can passivated materials without Chrome VI replace Cr6+?
Yes. Modern Chrome VI-free passivation technologies have been developed to effectively replace traditional Cr6+ systems in many industrial applications. Thanks to their high corrosion resistance, good paint adhesion, and production stability, these solutions are increasingly used in galvanized steel, aluminum, electronic components, and household appliances. Furthermore, eliminating Cr6+ helps businesses meet environmental and occupational health requirements.
Does this technology comply with RoHS and REACH?
Most passivation systems that do not contain Chrome VI are designed to meet international regulations such as RoHS (Restriction of Hazardous Substances) and REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals). The absence of hexavalent chromium significantly reduces environmental and occupational safety risks, while also supporting businesses exporting products to demanding markets such as Europe, the United States, and Japan.
Which metals can be used?
Chrome VI-free passivation technology can be applied to a wide variety of metals, including:
- Electro-Galvanized Steel
- Hot-Dip Galvanized Steel
- Aluminum and aluminum alloys
- Zinc and zinc alloys
- Cold-rolled steel before painting
- Metal components used in the automotive, electronics, home appliance, and construction industries.
The selection of the appropriate chemical system will depend on the type of metal substrate, corrosion resistance requirements, and the production process of each business.
Learn More
1. Chemicals for the Coiled Steel Industry .
2. Pre-treatment Chemicals
3. Chemicals for Hot-Dip Galvanizing (HDG)
4. Specialized Information
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DK-Chemicals: Metal surface pretreatment solutions for industry
DK-Chemicals provides chemical surface treatment solutions for metals serving the aluminum, galvanized sheet, color-coated steel, coil-coating, and related industrial applications.
With a focus on providing advanced, environmentally friendly technologies that meet modern production requirements, DK-Chemicals partners with customers in selecting suitable pre-treatment solutions, optimizing surface quality, and enhancing product durability after coating.
Contact DK Chemicals’ technical team today for detailed advice .
DK Chemical Company Limited
Address: 50 Street No. 12, Cityland Park Hills Residential Area, Go Vap Ward, Ho Chi Minh City
Hotline: 0909678599
Email: de@dk-chemicals.vn
