When the stakes are high—whether it’s flying at 35,000 feet, powering complex electronics, or defending in the field—metal finishing becomes a key factor in how well a component performs, how long it lasts, and how safe it is.
At The Lindgren Group, we provide industry-leading metal finishing services that meet the highest standards for aerospace, defense, automotive, electronics, and industrial manufacturing. Our capabilities include gold plating, hardcoat anodize, zinc nickel plating, silver plating, tin plating, and connector plating, all customized to meet the needs of our clients.
What Is Metal Finishing—and Why Does It Matter?
Metal finishing is more than just a final step in production. It’s a vital process that affects:
- Corrosion resistance
- Wear protection
- Electrical conductivity
- Thermal performance
- Overall product lifespan
A component with the right finish will outperform and outlast its uncoated counterpart, especially in industries where parts are exposed to harsh environments, high temperatures, or constant use.
Industries We Serve
Aerospace
Aircraft components demand coatings that can handle extreme pressure, temperature swings, and long-term reliability. Our aerospace coatings include:
- Hardcoat anodize for structural aluminum parts
- Gold plating for avionics and high-reliability electronics
- Zinc nickel plating for corrosion protection on fasteners and frames
All finishes meet industry standards, including NADCAP certifications.
Defense
Defense equipment faces unpredictable and rugged conditions. We support military and tactical manufacturers with:
- Connector plating using gold, silver, or tin for uninterrupted communications
- Zinc nickel plating for long-term durability in land, air, and sea operations
- Hardcoat anodizing for maximum wear resistance on gear and parts
Electronics & Communications
When it comes to electronics, one poor connection can mean system failure. We help electronics and telecommunications companies ensure long-lasting performance with:
- Gold plating for low-resistance, high-reliability signal transmission
- Silver plating for power distribution and high-frequency equipment
- Tin plating for cost-effective conductivity with strong corrosion protection
Automotive & Industrial Manufacturing
In high-wear, high-output environments like automotive production and factory machinery, metal finishing reduces breakdowns and boosts longevity. We offer:
- Zinc nickel plating to protect components from corrosion, salt, and chemicals
- Silver plating for EV and high-current systems
- Hardcoat anodize for lightweight aluminum parts that need toughness
Energy & Renewables
From solar farms to battery storage, energy components are constantly exposed to the elements. Our finishes ensure they stay efficient and protected:
- Silver and gold plating for conductive energy connectors
- Zinc nickel for structural and mounting hardware in outdoor environments
- Connector plating for reliability across power infrastructure
Our Specialized Metal Finishing Services
Gold Plating
Ideal for aerospace, defense, and electronics, gold plating provides unmatched conductivity and corrosion resistance for high-reliability applications.
Hardcoat Anodizing
This finish forms a thick, wear-resistant oxide layer on aluminum parts—perfect for structural and mechanical components that endure stress and abrasion.
Zinc Nickel Plating
Our most versatile corrosion protection option, zinc nickel is a cadmium-free solution used across aerospace, automotive, and military applications.
Silver Plating
Silver provides excellent conductivity and thermal performance, making it a top choice for high-current systems and RF components.
Tin Plating
A budget-friendly option, tin plating is perfect for electronics, offering excellent solderability and moderate corrosion protection.
Connector Plating
Connectors are only as good as their finish. We provide precise, high-performance connector plating solutions tailored for electronic, defense, and industrial systems.
Why Work with The Lindgren Group?
✅ Industry Certifications – We meet strict requirements like ISO, NADCAP, and MIL-SPEC, ensuring total reliability and traceability.
✅ Custom Solutions – No two projects are the same. We’ll develop a finish that aligns with your application, budget, and timeline.
✅ On-Time, Every Time – With full-service facilities and dedicated processes, we hit deadlines without compromising quality.
✅ Trusted Expertise – Decades of hands-on experience across the industries we serve.
Let’s Start Your Project Today
Need dependable metal finishing services that deliver? Whether it’s gold plating for connectors, zinc nickel plating for structural parts, or hardcoat anodizing for rugged gear, The Lindgren Group has the capability and credibility to help your products perform their best.