Not all metal finishing is created equal. In fact, choosing the wrong finish can cost you more than just time—it can compromise performance, safety, and product lifespan. At The Lindgren Group, we help companies across aerospace, defense, electronics, and industrial manufacturing make the right decision from the start.

With decades of experience in gold plating, hardcoat anodize, zinc nickel plating, silver plating, tin plating, and connector plating, we offer not just services—but solutions.

Why Metal Finishing Matters

Metal finishing isn’t just a visual improvement—it’s a performance upgrade. The right finish can:

  • Extend part lifespan
  • Improve corrosion resistance
  • Enhance conductivity
  • Increase wear resistance
  • Meet compliance and regulatory standards

For industries operating in extreme environments or requiring ultra-precise tolerances, a proper finish is mission-critical.

Metal Finishing 101: What You Need to Know

Here’s a breakdown of the core metal finishing processes we offer and when to use them.

Gold Plating

Best for: Electronics, aerospace connectors, defense systems

  • Exceptional conductivity
  • Corrosion-resistant even in harsh environments
  • Long-lasting performance with minimal degradation

Use it when you need absolute reliability in signal transmission or electrical contacts.

Hardcoat Anodizing

Best for: Aluminum components in aerospace, defense, and industrial equipment

  • Creates a hard, wear-resistant oxide layer
  • Maintains tight tolerances
  • Improves resistance to abrasion and chemicals

This finish is ideal for structural parts or components that endure regular mechanical stress.

Zinc Nickel Plating

Best for: Automotive, aerospace hardware, military equipment

  • Provides superior corrosion resistance
  • RoHS-compliant and cadmium-free
  • Maintains adhesion and performance under extreme conditions

This is one of the most widely trusted coatings in the transportation and defense sectors.

Silver Plating

Best for: High-frequency, high-power electrical systems

  • Excellent electrical and thermal conductivity
  • Handles high current loads
  • Resists heat and oxidation

Use silver plating in applications where performance at high voltage or frequency matters.

Tin Plating

Best for: Cost-sensitive electronic components and connectors

  • Excellent solderability
  • Protects against oxidation
  • Cost-effective for high-volume parts

Ideal for general-use electronics and communication systems where value and function need to align.

Connector Plating

Best for: Any precision electrical component

  • We offer gold, silver, or tin plating depending on application
  • Supports high-reliability use in aerospace, defense, telecom, and medical devices

Reliable plating is what turns a good connector into a great one—and we specialize in it.

Industries That Rely on The Lindgren Group

We work with engineers, manufacturers, and OEMs across high-stakes sectors:

Aerospace

  • NADCAP-certified coatings
  • Lightweight protection for aluminum
  • Corrosion and conductivity solutions

Defense

  • MIL-SPEC finishing
  • Ruggedized protection for extreme use
  • Advanced connector plating and corrosion defense

Electronics & Telecommunications

  • Ultra-precise finishes for circuit boards and micro-connectors
  • High conductivity for performance-critical systems

Automotive & EV

  • Durability for underbody and engine parts
  • Conductive solutions for EV batteries and charging systems

Industrial & Renewable Energy

  • Long-term corrosion protection for outdoor equipment
  • Enhanced thermal and electrical management for power systems

Why Engineers Choose The Lindgren Group

  • Expert Consultation – We help match the best finish to your material and operating environment
  • Certified Quality – ISO, NADCAP, and MIL-SPEC compliant
  • Custom Solutions – We work with your specs, timeline, and production scale
  • Decades of Experience – Proven across some of the most demanding industries in the world

When precision and performance matter, our metal finishing team is your most valuable partner.

Let’s Get to Work

Ready to protect, enhance, and optimize your components? Whether it’s a small connector or a full-scale production run, The Lindgren Group delivers dependable, high-performance results. Request a quote today!