
When it comes to corrosion protection for industrial chains, manufacturers have long relied on traditional coatings such as paint, zinc-containing paint, electroplating, and hot-dip galvanizing.
However, these methods often fall short, especially in harsh environments.
The Challenges with Traditional Coatings
Each conventional method has its limitations:
- Paint offers no absolute corrosion protection.
- Zinc-containing paint erodes quickly in high-contact areas, leaving the metal exposed.
- Electroplating suffers from low coating thickness, poor adhesion, uneven coverage, and hydrogen embrittlement.
- Hot-dip galvanizing faces issues with coating consistency, high processing temperatures, and chain link sticking during cooling.
These drawbacks hinder chain performance and durability, especially in industries that rely on strength and corrosion resistance.
Distek Zinc Thermal Diffusion: The Right Coating Technology For Chains
DiSTeK® builds on the century-old process of Sherardizing – developed by metallurgist Sherard Cowper-Coles – and enhances it through thermal diffusion technology. This process integrates zinc coating at multiple levels of metal penetration, creating a stronger and more durable bond than surface-level coatings.
Key benefits include:
- Surface integrity: The chain’s mechanical properties remain intact, even for high-strength grades like Grade 80.
- Controlled application: Coating occurs at a minimum of 320°C, ensuring uniform coverage without additional machining.
- Adhesion: The coating adheres to secondary treatments such as paint or passivation layers.
- Operational efficiency: The process uses minimal energy, water, and pollution control, achieving 99% zinc utilization.
Cost and Environmental Impact
Distek technology is designed with cost-efficiency and sustainability in mind. Unlike other coating methods, the cost of increased coating thickness is tied solely to material use, not labor or additional processing.
Furthermore, the system operates on a modular “pay-as-you-grow” model, allowing manufacturers to scale production without significant infrastructure upgrades.
Environmental advantages include:
- Eco-Friendly: In the Distek TDG process, there are no hazardous materials, wastewater, or polluting waste.
- Worker safety: The process minimizes risks, making it safer for operators.
- Reduced operational costs: With only minimal maintenance required, Distek provides a sustainable long-term solution.
Proven Performance Across Industries
Leading organizations, including the U.S. Navy, Daimler, and Siemens Laboratories, have validated Distek TDG technology.
Clients like Nosted Group (Norway) successfully implemented Distek coating for their chain products.
Additionally, our process complies with major global standards, including ASTM, EN, and ISO certifications, ensuring compatibility across industries like marine, automotive, defense, and oil and gas.
Partner with DiSTeK®
With over 30 years of innovation, DiSTeK continues to lead the way in corrosion protection technology. Our thermal diffusion zinc coating sets a new benchmark for chain manufacturing performance, efficiency, and sustainability.
Ready to elevate your chain products with unmatched corrosion resistance? Contact us today to learn more about how DiSTeK® can transform your operations.