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Trivalent Chemical Conversion Coating Services: Elevate Excellence on Zinc Die Castings (Zamak)

National Plating Company is your trusted provider of superior trivalent chemical conversion coating services. We specialize in the art of trivalent passivation for zinc die cast parts, offering transformative solutions that enhance their appearance, durability, and corrosion resistance. With a steadfast adherence to industry standards, including the GMW17669 specification and a wide range of company specifications, we deliver high-quality, consistent, and repeatable results.

The Trivalent Passivation Process for Zinc Die Cast Parts: Transforming Metal with Precision

Trivalent chemical conversion coatings are surface treatments used to protect and enhance the corrosion resistance of metal substrates, such as the commonly used zinc alloy, Zamak. Trivalent chemical conversion coatings are widely used in various industries, including automotive, aerospace, electronics, and construction. These coatings are applied through a chemical process that forms a thin, protective layer on the surface of the metal.

The term “trivalent” refers to the presence of trivalent chromium compounds, specifically trivalent chromium ions (Cr3+), in the coating solution. Trivalent chromium is considered a safer alternative to hexavalent chromium (Cr6+), which was commonly used in older conversion coatings but is now restricted due to its toxicity and environmental concerns.

Our trivalent chemical conversion coatings involve the immersion of the metal substrate in a solution containing trivalent chromium compounds along with other chemical agents. This process is RoHS & REACH Compliant. These coatings create a thin, amorphous layer on the metal surface, which provides several benefits, including:

  • Corrosion protection: Trivalent conversion coatings act as a barrier against moisture, chemicals, and other corrosive elements, thereby reducing the risk of corrosion.
  • Enhanced paint adhesion: The conversion coating forms a chemically bonded layer that improves the adhesion of subsequent paint or coating layers, providing better durability and longevity.
  • Electrical conductivity: Trivalent coatings can maintain the electrical conductivity of metal surfaces, making them suitable for applications where conductivity is required.
  • Aesthetics: Trivalent conversion coatings can also enhance the appearance of metal surfaces, providing a decorative or uniform finish.

Adherence to GMW17669 and Unique Company Specifications: Setting the Standard for Excellence

At National Plating Company, we take pride in upholding the highest industry standards. We strictly adhere to the GMW17669 specification, which outlines the requirements for trivalent chemical conversion coatings on zinc die cast parts. Additionally, we maintain a wide range of company specifications that reflect our dedication to quality, precision, and customer satisfaction. These specifications guide our passivation processes, ensuring that we consistently deliver exceptional results.

In-House Chemist: Expertise and Innovation

Our team includes a dedicated in-house chemist who possesses extensive knowledge and expertise in metal finishing processes. With their profound understanding of chemical interactions, surface preparations, and passivation techniques, our chemist plays a crucial role in ensuring the precision, accuracy, and consistency of our trivalent chemical conversion coating services. Their innovative approach and attention to detail are instrumental in achieving remarkable results.

In-House Lead Acetate and Salt Spray Testing: Ensuring Quality and Durability

To ensure the highest quality and durability of our trivalent chemical conversion coatings, we perform in-house lead acetate and salt spray testing. Lead acetate testing allows us to confirm the presence of trivalent chromium, ensuring that our coatings meet the strict trivalent passivation requirements. Additionally, our salt spray testing simulates harsh environmental conditions, allowing us to evaluate the corrosion resistance and performance of our coatings. With these rigorous testing procedures, we assure that your zinc die cast parts will meet the highest standards of quality and durability.

ISO 9001:2015 Certification: Commitment to Quality Assurance

We are proud to be ISO 9001:2015 certified, demonstrating our commitment to maintaining an effective quality management system. This certification signifies our dedication to meeting and exceeding customer expectations, continuous improvement, and delivering high-quality trivalent chemical conversion coating services. With National Plating Company, you can trust in our commitment to excellence and the consistent quality of our work.

We understand the importance of delivering exceptional outcomes for your metal parts. Our commitment to high quality, precision, consistency, and repeatability drives our every endeavor. With advanced equipment, stringent process controls, and a skilled team, we consistently deliver remarkable trivalent chemical conversion coating results that meet your exact requirements. At National Plating Company, your satisfaction is our top priority.

Contact Us: Discover the National Plating Company Difference

Ready to elevate your zinc die cast parts with trivalent chemical conversion coatings? Contact National Plating Company today to discuss your trivalent passivation needs. Our knowledgeable team is eager to assist you in transforming your metal components into cutting edge industry leading parts.