Zinc-Nickel Plating Services for Automotive Parts: Sustainable Strength and Proven Performance
When it comes to long-term protection for critical automotive components, zinc-nickel plating services provide unmatched performance and reliability. At DeKalb Metal Finishing, we specialize in precision-engineered zinc-nickel electroplating—a process that produces an alloy finish designed to outperform standard zinc and cadmium plating systems.
For more than 70 years, DeKalb has been trusted by leading automotive manufacturers who demand consistent quality, advanced process control, and a commitment to sustainability. Our team understands that in modern metal finishing, performance and responsibility must go hand in hand.
What Sets Zinc-Nickel Plating Apart
Zinc-nickel plating is often mistaken for a coating, but it’s much more than that. It’s an electrochemically bonded metallic alloy formed by depositing zinc and nickel ions onto a metal substrate in a controlled electroplating bath.
The result is a metallurgically bonded layer—not a surface film—that integrates directly with the base metal, creating a durable barrier against corrosion, heat, and wear.
DeKalb Metal Finishing’s alkaline zinc-nickel process achieves a consistent 12–16% nickel content, the industry’s sweet spot for maximum corrosion resistance and sacrificial protection.
Key Benefits of Zinc-Nickel Plating
- Up to 1,000+ hours of salt spray resistance (ASTM B117)
- Uniform coverage even on complex geometries
- Excellent adhesion and torque-tension characteristics
- Compatibility with a wide range of post-treatments and sealers
- Superior protection under extreme temperature and humidity conditions
This combination of protection and performance makes zinc-nickel the preferred finish for automotive, heavy equipment, and defense applications.
DeKalb’s Advanced Plating Process
Our plating systems are designed for consistency, control, and repeatability. Every part we process undergoes real-time monitoring to maintain precise deposit thickness, alloy ratio, and current distribution.
Our in-house team uses advanced statistical process control (SPC) to maintain quality and reduce variability across every batch. The result: uniform plating, verified corrosion resistance, and fewer rejects.
Rigorous Testing and Validation
DeKalb’s quality assurance process includes:
- Neutral salt spray testing (ASTM B117)
- Cyclic corrosion and Kesternich testing
- Cross-section thickness verification
- Adhesion and hydrogen embrittlement evaluation
- Nickel distribution analysis for deposit uniformity
Each step ensures that every plated component meets or exceeds customer and OEM specifications.
Environmentally Responsible Electroplating
DeKalb Metal Finishing has long been a leader in environmentally conscious plating technology. Our zinc-nickel process uses RoHS- and REACH-compliant chemistries, including trivalent chromium passivation systems that replace traditional hexavalent compounds.
We maintain a closed-loop wastewater treatment system and minimize hazardous byproducts through advanced filtration and recycling technologies.
By continuously investing in cleaner chemistries and waste-reduction systems, we help our customers achieve their sustainability goals without sacrificing quality or performance.
Sustainability is not an afterthought at DeKalb—it’s engineered into every part we plate.
Zinc-Nickel Plating Applications in the Automotive Industry
Zinc-nickel plating plays a critical role in modern automotive manufacturing, providing the protection needed for components exposed to corrosive environments, heat, and mechanical stress.
Our zinc-nickel plating services are trusted by OEMs and Tier 1 suppliers for components such as:
- Brake system components
- Fuel and hydraulic line fittings
- Fasteners and clips
- Suspension and chassis hardware
- Powertrain brackets and housings
Each of these components demands not only corrosion resistance but also precise dimensional control and consistent surface properties—areas where DeKalb’s plating process excels.
Engineering Quality That Lasts
Every detail in DeKalb’s process—from bath chemistry to racking design—is engineered for performance and repeatability. Our plating experts work closely with customers to optimize part orientation, ensure even current density, and achieve target deposit properties.
We also provide design consultation to help customers select the right plating specification, passivation type, and sealing system for their application. This proactive approach reduces variation, extends component life, and improves total cost efficiency.
Why Choose DeKalb Metal Finishing
When choosing a partner for zinc-nickel plating, consistency, quality, and environmental integrity matter. DeKalb Metal Finishing stands apart by combining metallurgical expertise, automation, and sustainability into every production line.
The DeKalb Difference
- Over 70 years of metal finishing excellence
- Advanced alkaline zinc-nickel systems for superior adhesion and performance
- Certified IATF 16949 and ISO 14001 quality systems
- Comprehensive in-house testing and lab verification
- Proven track record with major automotive OEMs and Tier suppliers
Our customers trust us to deliver plating that performs the first time—and every time after.
A Partner in Performance and Responsibility
At DeKalb Metal Finishing, we don’t see plating as a simple surface treatment—it’s a critical engineering function that protects, enhances, and extends the life of every component we process.
With our zinc-nickel plating services, customers gain the confidence that their parts are finished to the highest standards of performance and environmental responsibility.
Together, we’re helping shape the future of automotive manufacturing—one precisely plated component at a time.
Learn More or Request a Quote
Ready to experience the difference of true alloy plating?
Visit our Zinc-Nickel Plating Services page and contact us.