For years, manufacturers across the aerospace and defense industries have relied on The Lindgren Group for finishing work that simply can’t fail. From connector plating on delicate avionics parts to hardcoat anodizing for rugged aluminum components to corrosion-resistant coatings that keep mission-critical hardware protected, we’ve built a reputation for delivering finishes that stand up to real-world conditions – not just the theoretical ones.
Why Aerospace Manufacturers Trust The Lindgren Group
Aerospace finishing isn’t something you can learn overnight. It’s a combination of material science, practical experience, and a deep understanding of how metals behave under extreme stress. Over the years, we’ve worked with virtually every kind of aerospace part you can imagine from tiny connectors to large, machined flight-ready structures.
We support programs in:
- Commercial aviation
- Military and defense applications
- Space and satellite hardware
- UAV and drone systems
- Engine components and propulsion systems
- Avionics, sensors, and communication equipment
If it goes in the air, chances are we’ve finished a part like it.
Our NADCAP Certification Sets the Bar
A lot of companies talk about quality. NADCAP certification proves it.
NADCAP, for those outside the industry, is a rigorous accreditation process overseen by the Performance Review Institute. Maintaining that certification means:
- Every step of our process is monitored and documented
- Our equipment and chemistry are tightly controlled
- Our people are trained to strict standards
- Every part has traceability from start to finish
We consistently meet aerospace, defense, and OEM requirements
NADCAP isn’t a “nice to have.” It’s a must-have for anyone serious about aerospace manufacturing. And we’re proud to maintain that certification across the finishing services aerospace suppliers rely on most.
Connector Plating for Avionics and Electrical Systems
Connectors might be small, but in an aircraft or spacecraft, they’re incredibly important. Poor plating can lead to corrosion, electrical failure, signal issues, or intermittent connections—which are problems no one wants to discover at 30,000 feet.
We plate a wide range of connectors and terminals used in:
- Flight control systems
- Navigation and GPS equipment
- Sensors and instrumentation
- Power distribution
- Communication systems
- Engine monitoring assemblies
Our Connector Plating Options Include:
- Gold plating: excellent conductivity and long-term reliability
- Nickel plating: strong wear resistance and corrosion protection
- Silver plating: ideal for high-current applications
- Tin plating: cost-effective and widely used in aerospace electronics
- Selective plating: for components requiring precise application
Hardcoat Anodizing for High-Wear Aluminum Components
Aluminum is everywhere in aerospace manufacturing, and hardcoat anodizing (Type III anodize) is one of the most reliable ways to extend its life.
Hardcoat anodizing creates a thick, dense oxide layer that protects the aluminum from abrasion, corrosion, and extreme temperature swings. It also provides excellent electrical insulation, which is crucial in many aerospace assemblies.
Aerospace Parts That Commonly Need Hardcoat Anodizing:
- Structural brackets and housings
- Mechanical linkages
- Moving assemblies
- Actuation components
- Landing gear parts
- Precision-machined aircraft hardware
Why Hardcoat Anodizing Works So Well
Hardcoat anodizing offers:
- High wear resistance
- A very hard, durable surface
- Chemical and corrosion protection
- Dimensional stability under stress
- Excellent performance in harsh temperature variations
Our NADCAP-certified hardcoat anodizing is designed for parts that face repeated stress cycles, friction, or direct exposure to the elements.
Corrosion-Resistant Coatings Built for Tough Conditions
Aerospace components deal with everything from humidity and salt exposure to fuel, hydraulic fluid, and wide temperature swings. Without the right coating, even high-quality materials can deteriorate quickly.
We provide several corrosion-resistant finishing options, each tailored to different metals, environments, and performance requirements.
Our Corrosion-Resistant Coating Options Include:
- Anodizing (Type II and Type III)
- Electroless nickel plating
- Chemical conversion coating (chem film / chromate conversion)
- Passivation for stainless steel
- Zinc-nickel plating
- Specialty aerospace-tested coatings and topcoats
Every finish goes through quality checks that may include adhesion testing, thickness verification, and visual and dimensional inspection. We’re meticulous when it comes to coating integrity – because your parts depend on it.
How We Prepare Your Parts for Flight
Finishing aerospace components involves more than dipping a part into a tank and calling it good. There’s a full ecosystem of quality control, documentation, process planning, and communication behind every finished component.
Here’s a look at what goes into our work:
- Technical Review
We start with your drawings, specs, and any OEM requirements. We check for engineering notes, special masking instructions, material restrictions, and anything else that affects the coating.
- Material Verification
Different alloys interact with coating chemistries in different ways. We confirm every material and adjust processes as needed.
- Process Planning
Our team defines the exact steps, tanks, timing, masking, racking, thickness requirements, and testing methods for your part.
- Precision Masking
When only specific surfaces should be coated—or should not be coated—masking becomes a critical part of the job. We handle simple and complex masking with equal care.
- Coating Application
Whether it’s plating, anodizing, or conversion coating, our chemistry and equipment are tightly controlled and constantly monitored.
- Inspection and Testing
We verify every part with tools like:
- Digital thickness gauges
- Adhesion tests
- Conductivity or resistivity measurements
- Optical inspection
- Salt spray testing (when required)
- Packaging and Handling
Finished aerospace components require careful handling. We package each batch to maintain surface integrity during transport and assembly.
Every step is logged. Every part is traceable. And every process is built around accuracy.
Industries and Programs We Support
Because our finishing capabilities cover such a wide range of materials and coating types, we work with companies across almost every part of the aerospace sector, including:
- Commercial aircraft manufacturers
- Defense aviation and military contractors
- Space and satellite hardware suppliers
- Tier 1 and Tier 2 aerospace manufacturers
- Engine and propulsion system builders
- Avionics providers
- UAV and drone innovators
Some customers depend on us for specialty prototypes, others for large production runs—but all rely on our consistency, technical understanding, and quality systems.
Our quality systems include:
- NADCAP-accredited processes
- AS9100-compliant quality practices
- Comprehensive traceability
- Routine audits
- Calibrated inspection equipment
- Continuous operator training
- Automated data tracking
We also invest in modern technology so we can maintain high repeatability and tight tolerances. Our facilities feature temperature-controlled lines, high-purity rinsing systems, updated chemistry controls, and custom racking to protect sensitive parts.
The goal is always the same: consistent, predictable, reliable results.
A Long-Term Partner for Aerospace Finishing
Whether you need:
- Reliable connector plating
- Precise hardcoat anodizing
- Proven corrosion-resistant coatings
- NADCAP-certified processes
- Fast turnaround on complex components
A team that understands aerospace from the ground up —we’re here to help.
Get in Touch With The Lindgren Group
If you’re looking for a finishing provider you can trust with your most critical aerospace components, we’d be happy to help each and every time. Whether you have a full production run or a single prototype that needs special handling, our team is ready to help create a solution that meets your technical, environmental, and performance requirements.