When superior electrical conductivity, thermal transfer, and anti-galling properties are non-negotiable, silver plating is the solution. At The Lindgren Group, we provide engineered silver plating services that meet the rigorous standards of industries like aerospace, defense, medical devices, telecommunications, and high-voltage power systems.

We apply silver finishes with exacting control over thickness, surface finish, adhesion, and substrate compatibility—ensuring your parts perform reliably under pressure, load, and temperature.

From mission-critical avionics connectors to high-frequency RF components and power transmission bus bars, our silver plating delivers maximum performance, durability, and precision.

Why Choose Silver Plating?

Silver is the most electrically and thermally conductive metal on the planet. That makes it the ideal plating material for applications where signal integrity, heat dissipation, and electrical efficiency are vital.

Key Benefits of Silver Plating:

• Unmatched conductivity: Higher than copper, gold, or any other metal

• Excellent solderability: Especially when applied with proper underplate

• High reflectivity: Ideal for optical and laser components

• Fretting and galling resistance: Great for sliding contacts and connectors

• High-frequency performance: Ideal for RF, microwave, and radar

• Lubricity: Prevents metal-on-metal wear in dynamic components

• Anti-arcing and anti-corrosion properties in high-voltage environments

Silver Plating Applications

The Lindgren Group provides silver plating for parts used in:

Aerospace

• RF connectors and antennas

• Avionics hardware

• EMI shielding components

• Aircraft contactors

• Engine sensors and temperature probes

Defense

• Missile guidance contacts

• Radar assemblies

• Weapons systems

• Ground vehicle electrical systems

• Tactical communication gear

Power & Energy

• Switchgear contacts

• Bus bars

• Battery terminals

• High-voltage connectors

• Circuit breakers and fuses

Medical Devices

• Diagnostic imaging contacts

• Surgical robotics

• High-reliability cable connectors

Telecommunications

• RF & microwave filters

• Antenna connectors

• Satellite systems

• Fiber optic assemblies

Automotive & EV

• Charging contacts

• High-voltage terminals

• Sensors and inverters

From tiny precision contacts to large-format copper bus bars, we deliver silver plating solutions that maximize electrical and mechanical performance.

The Lindgren Group’s Silver Plating Capabilities

We offer a full suite of silver plating services, including:

• Bright, matte, or semi-bright silver finishes

• Thickness control: From 10 microinches to over 0.001”

• Base metals: copper, brass, steel, stainless, aluminum (with underplate)

• Underplating: nickel, copper, or electroless nickel as diffusion barriers

• Selective plating and masking for connector or contact areas

• Post-plate treatments: anti-tarnish, chromate passivation, or lubricants

• Rack, barrel, and vibratory plating options

• NADCAP-capable processing (upon request)

All finishes comply with industry standards, including:

• ASTM B700 – Standard Specification for Electrodeposited Silver Coating

• AMS 2410 / 2411 / 2412 – Aerospace silver plating standards

• MIL-PRF-29032 – Silver plating for electrical applications

• RoHS and REACH compliant finishes available

Tackling Tarnish: Anti-Tarnish Options for Silver Finishes

One of the primary concerns with silver plating is its tendency to tarnish when exposed to sulfur compounds in the air. Tarnish doesn’t necessarily impair conductivity but can affect:

• Solderability

• Appearance

• Surface resistance in sensitive applications

At The Lindgren Group, we offer anti-tarnish treatments to extend shelf life and maintain functional integrity, including:

• Chromate conversion coatings

• Clear passivation films

• Anti-tarnish immersion post-treatments

• Storage recommendations for sensitive assemblies

Let us help you determine the right finish for your application and storage conditions.

Silver Plating vs. Gold Plating vs. Tin Plating

Silver plating shines when you need top-tier conductivity, affordability over gold, and high-frequency performance.

Aerospace & Defense-Grade Silver Plating

When lives depend on performance, plating matters. Our silver plating meets aerospace and defense requirements for:

• Low contact resistance

• High mating cycles

• Elevated temperature exposure

• Vibration and shock resistance

• MIL-SPEC and NADCAP compliance

Our quality systems include:

• Coating thickness verification (XRF)

• Adhesion and solderability testing

• Visual inspections to IPC standards

• Surface roughness and reflectivity control

• Certificate of Conformance (C of C)

• Full lot traceability

We understand the mission—and we protect it with precision.

Silver Plating for Power & Energy Systems

In the power sector, silver plating is essential for high-voltage performance. We plate:

• Copper bus bars for conductivity and arc protection

• Switch contacts for low resistance

• Terminal lugs for heavy-duty power transfer

• High-voltage transformers and inverters

• EV charging infrastructure connectors

Silver plating reduces power losses, resists arcing, and maintains performance even at elevated temperatures and load conditions.

Our Quality Commitment

We don’t just meet specs—we exceed them. The Lindgren Group is known for:

• ISO 9001 certified processes

• Strict process control and testing

• Engineering collaboration and finish optimization

• Custom masking and selective plating

• Quick turnaround and scalable capacity

• RoHS-compliant finishes available

We work with engineers from the design stage to ensure plating success before the first part is ever produced.

Request a Quote for Silver Plating Services

Let’s talk silver. Whether you’re developing a next-generation aerospace connector, a power bus bar system, or a high-frequency communication device, The Lindgren Group is ready to deliver.