Precision Plating and Coating Solutions for the Aerospace Industry

In aerospace manufacturing, precision is everything. Whether it’s a mission-critical connector inside a cockpit or a structural aluminum component exposed to the elements, aerospace parts must perform under extreme conditions—and continue doing so for years.

At The Lindgren Group, we specialize in aerospace metal finishing services that help parts survive and thrive in flight. With decades of experience, full certification to NADCAP, MIL-SPEC, and ISO 9001 standards, and a full range of high-performance processes—including gold plating, hardcoat anodizing, zinc nickel plating, silver plating, tin plating, and connector plating—we support aerospace OEMs and suppliers with finishes engineered for altitude, durability, and dependability.

Why Metal Finishing Matters in Aerospace

Aerospace parts are exposed to extreme forces—pressure changes, vibration, friction, humidity, and fluctuating temperatures. They must also meet tight tolerances, strict regulatory requirements, and long service life expectations.

Without proper surface finishing, even the strongest metal will fail prematurely. That’s why aerospace manufacturers rely on metal finishing to:

  • Improve corrosion resistance
  • Enhance wear and abrasion resistance
  • Ensure electrical conductivity and signal integrity
  • Add thermal stability
  • Enable paint and bonding adhesion
  • Meet government and commercial aerospace standards

At The Lindgren Group, we help aerospace companies solve surface-level challenges that have major consequences if overlooked.

Aerospace-Grade Metal Finishing Services

We offer a wide range of finishing processes for aerospace components, each designed to meet specific functional, environmental, and regulatory requirements.

Gold Plating for Avionics and Connectors

Gold plating is essential in aerospace electronics due to its unparalleled conductivity, corrosion resistance, and stability over time. It’s commonly used for:

  • Avionics connectors
  • Navigation systems
  • Communication hardware
  • Flight control electronics
  • Satellite interfaces

Gold does not oxidize, ensuring signal integrity over thousands of mating cycles and in high-vibration environments. We offer plating that meets or exceeds MIL-G-45204, ASTM B488, and IPC standards, with both hard and soft gold options available.

Hardcoat Anodizing for Aluminum Aerospace Structures

Aluminum is a mainstay in aerospace for its strength-to-weight ratio, but it’s naturally susceptible to wear and corrosion. Hardcoat anodizing (Type III Anodize) transforms the aluminum surface into a dense oxide layer, providing:

  • Abrasion resistance (60–70 Rockwell C)
  • Corrosion resistance (with optional sealing)
  • Dielectric properties
  • Improved surface durability without added weight

Used on everything from landing gear to fuselage brackets, our anodizing process is fully compliant with MIL-A-8625F Type III.

Zinc Nickel Plating for Fasteners and Structural Hardware

Fasteners and airframe components must survive salt, humidity, fuel, and thermal cycling. Zinc nickel plating provides a RoHS-compliant alternative to cadmium, offering:

  • Over 1,000 hours of salt spray resistance
  • Excellent adhesion to steel and stainless substrates
  • Exceptional corrosion resistance
  • Compatibility with high-strength alloys

We support both rack and barrel zinc nickel plating in compliance with AMS 2417 and customer-specific aerospace specs.

Silver Plating for High-Frequency Aerospace Systems

Silver plating is widely used in RF, microwave, and high-frequency electronics thanks to its superior electrical and thermal conductivity. Silver is ideal for:

  • Antenna and sensor connectors
  • Power distribution systems
  • High-voltage switch contacts
  • EMI/RFI shielding

Silver also tolerates elevated temperatures, making it ideal for parts in pressurized and engine-adjacent zones.

Tin Plating for High-Volume Aerospace Electronics

For components where solderability and cost efficiency are critical, tin plating is a trusted finish. Used in everything from in-flight entertainment systems to wire terminations, tin offers:

  • Easy, reliable soldering
  • Basic corrosion protection
  • Non-toxic, RoHS-compliant formulation
  • Broad material compatibility

We meet ASTM B545 and MIL-T-10727 requirements for aerospace-approved tin finishes.

Connector Plating for High-Reliability Signal Transmission

Connectors are the lifeline of every aerospace electrical system, and their plating is critical. We offer:

  • Selective gold plating for high-wear contacts
  • Silver plating for power connectors
  • Tin plating for grounding or soldered connectors

We support selective masking, multiple finishes per component, and tight tolerance plating for micro-connectors and high-density assemblies.

Types of Aerospace Components We Plate

Our finishing services are applied to hundreds of parts used in both commercial and defense aviation, including:

  • Electrical connectors and backshells
  • Circuit boards and terminals
  • Structural aluminum brackets and panels
  • Valve bodies and hydraulic components
  • Satellite connectors and antenna housings
  • Fittings, fasteners, bushings, and bearings
  • UAV, rotorcraft, and spacecraft parts

Whether your part flies, guides, or transmits, our coatings help it do its job longer and better.

Certifications That Aerospace Buyers Trust

You can’t afford rework or non-conformance when your parts are destined for the sky. That’s why we back every aerospace finishing project with full compliance and documentation.

  • ✅ NADCAP Accreditation
  • ✅ MIL-SPEC Finishes (MIL-G-45204, MIL-A-8625F, MIL-T-10727, etc.)
  • ✅ ISO 9001 Quality System
  • ✅ RoHS & REACH Compliance
  • ✅ Lot Traceability & Material Certifications
  • ✅ Plating Thickness Certification & Visual Inspection Reports

Our in-house QA teams ensure every order meets strict internal controls and customer specs before shipment.

Partnering with Aerospace OEMs, Tier 1s & Suppliers

Whether you’re an established aerospace manufacturer or a growing supplier seeking finishing expertise, we offer scalable support at every level.

For OEMs and Tier 1 Suppliers

  • Consistent finishes across production runs
  • Dedicated account and engineering support
  • Customized quality documentation
  • Integration into your approved supplier lists

For Aerospace Subcontractors & Machinists

  • Quick-turn prototype finishing
  • Plating consultation and spec recommendations
  • Fixturing and masking solutions for complex parts
  • Short-run and one-off anodizing or plating jobs

We partner with companies across the U.S. aerospace landscape—from Minnesota and Texas to California, Washington, and Florida.

Why Aerospace Leaders Choose The Lindgren Group

Proven Aerospace Track Record

We’ve supported clients in commercial aviation, defense, satellite systems, and space exploration with precision finishes that perform.

Advanced Plating & Anodizing Facilities

Our facilities are optimized for aerospace-scale precision and throughput, with dedicated lines for gold, silver, anodize, and more.

Engineering-Driven Support

Our team collaborates with your design and procurement teams to select the right finish for every material, geometry, and spec.

Reliable Turnaround & Logistics

From prototype to production, we meet your schedule—and provide documentation that’s ready for your AS9100 or FAA auditor.

Request a Quote for Aerospace Metal Finishing

When your parts take flight, trust The Lindgren Group to deliver finishes that meet the moment—every time. Whether you’re coating fasteners, plating avionics, or anodizing structural aluminum, we bring the compliance, quality, and performance the aerospace industry demands.