When a metal part fails, it doesn’t just damage equipment—it can damage reputations, delay projects, or even put lives at risk. That’s why quality assurance isn’t a final step at The Lindgren Group—it’s woven into every stage of our metal finishing process.
Serving industries like aerospace, defense, electronics, and industrial manufacturing, we deliver high-reliability finishes like gold plating, hardcoat anodizing, zinc nickel plating, silver plating, tin plating, and connector plating—all backed by strict process controls and certification compliance.
Our Promise: Finishes That Perform and Pass Inspection
Every component that leaves our facility is held to the highest standards. Why? Because our clients operate in high-stakes environments where:
- Traceability is required
- NADCAP or MIL-SPEC compliance is non-negotiable
- Failure is not an option
From flight-critical aerospace parts to military-grade connectors, we deliver finishing solutions that exceed expectations—and pass inspections with confidence.
Certifications That Set Us Apart
At The Lindgren Group, we maintain industry-recognized certifications that reflect our commitment to quality and consistency, including:
✅ NADCAP (National Aerospace and Defense Contractors Accreditation Program)
✅ ISO 9001 Quality Management System
✅ MIL-SPEC Compliant Plating and Anodizing
✅ RoHS-Compliant Finishing Processes
These standards aren’t just logos on a website—they’re embedded into our training, documentation, and daily operations.
How We Maintain Exceptional Quality
1. Documented Process Controls
Every plating and anodizing line is run with process documentation that aligns with customer and certification requirements. Nothing is left to chance.
2. Advanced Testing Capabilities
We regularly perform testing for:
- Coating thickness
- Adhesion and wear
- Corrosion resistance (salt spray testing)
- Solderability and conductivity
3. Full Lot Traceability
From incoming materials to final inspection, every part is traceable. This is essential for aerospace and defense contractors who need full material histories.
4. Continuous Improvement Culture
Our team is trained to spot issues before they arise and always look for ways to improve efficiency, performance, and consistency.
The Finishes That Pass Every Test
Gold Plating
Ideal for critical connectors and circuit paths in aerospace and military systems. Gold resists corrosion, ensures conductivity, and remains stable under long-term use.
Hardcoat Anodizing
Meets MIL-A-8625 Type III standards. Used for high-durability aluminum components that need abrasion and chemical resistance.
Zinc Nickel Plating
A RoHS-compliant cadmium alternative. Provides over 1,000 hours of salt spray corrosion protection—perfect for military and automotive use.
Silver Plating
Delivers low contact resistance and high conductivity under thermal and high-frequency conditions. Common in power systems and RF applications.
Tin Plating
Meets solderability and electrical performance requirements while keeping costs down. Great for high-volume electronics and telecom gear.
Connector Plating
Precision finishes for tight-tolerance connectors, compliant with IPC and military standards. Options include gold, silver, and tin, depending on use case.
Industries That Trust Our Quality
- Aerospace: Flight components, avionics, electrical interconnects
- Defense: Tactical equipment, communication systems, high-wear components
- Electronics: Circuit boards, micro-connectors, power distribution
- Automotive & EV: Durable coatings for engine and electrical components
- Industrial Manufacturing: Finishes built for friction, wear, and exposure
Why Quality-Driven Teams Choose The Lindgren Group
🔍 Reliability – We deliver consistent, on-spec finishes every time
📋 Compliance – Our certifications ensure you’re audit-ready
⚙️ Capability – We handle complex geometries, small-batch prototypes, and full-scale production
🛠️ Support – Our team works closely with engineers, buyers, and QC managers to meet your specs
Get It Finished. Get It Certified. Get It Done Right.
From connector plating to anodizing structural components, The Lindgren Group provides metal finishing solutions that meet your needs—and the industry’s most demanding standards.