Electroplating 101

A Small Introduction to Plating and Coating

Silver plating offers the highest electrical conductivity of all metals. It is not a precious metal and will oxidize rapidly. Silver plating is best suited for engineering purposes for solderable surfaces, electrical contact characteristics, high electrical and thermal conductivity, thermocompression bonding, wear resistance of load-bearing surfaces, and spectral reflectivity electrical applications, good corrosion resistance, good solderability, and other applications.

Silver Plating Specification

Specification: Mil-QQ-S-365 Silver Plating, Electrodeposited

  • Type I Silver Plating - Matte
  • Type II Silver Plating - Semi-Bright
  • Type III Silver Plating - Bright

Silver Plating - Grades

  1. With supplementary tarnish-resistant treatment.
  2. Without supplementary tarnish-resistant treatment

Silver Plating - Tarnish-Resistance

Several options are available as supplementary coating for increasing tarnish resistance. Depending on solderability, or subsequent finishing steps such as painting or powder coating, we will recommend specific tarnish resistant coatings.

Silver Plating - Thickness

  • 0.0003" for articles such as terminals which are to be soldered
  • 0.0005" for corrosion protection of nonferrous basis metals or for increasing the electrical conductivity of basis metals
  • 0.0050"-0.0100" for electrical contacts, depending on pressure, friction and electrical load

Silver Plating - Corrosion Protection


For applications where corrosion protection is important, the use of silver plating with an electrodeposited nickel undercoat is advantageous.

Silver Plating - Underplate Recommendations

Silver plating on steel, zinc and zinc-based alloys should have an undercoat of nickel over copper.

Silver plating on copper and copper alloys should have a nickel undercoat. Copper and copper alloy material on which a nickel undercoat is not used, and other base metals where a copper undercoat is employed, should not be used for continuous service at a temperature in excess of 300 degrees F (149 degrees C). Adhesion of the silver plating is adversely affected because of the formation of a weak silver and copper intermetallic layer.

Taken from ProPlate.com

Contact Us

For all quotes, consulting, questions, etc.
Contact: Mike Reeder
E-mail: michaeldreeder@hotmail.com

Phone: 713-645-6921
Fax: 713-645-3583
Mobile: 832-722-6703

Email Request for Quote or drawings to:
Feel free to call my cell phone after normal business hours. We offer 24X365 service when our customers require it. If you have questions about any coating, CALL. We are the coating experts on your team.

If Mike is not available, other points of contact:
Carlos Palma (VP, Operations)

Lisette Rosas (Office Manager)

As a metal finishing engineer, I will consult with you on which coating or specification best meets your requirements. If you do not find what you are looking for on this website, please call me. We are always looking for new challenges and will invest in new capabilities as demanded by the market. If we cannot perform the coating process, I will refer you to one of our esteemed competitors who can help you.

Oh yeah, Se habla Espanol! Everybody speaks Spanish here except the Canadian immigrant (our Senior Coatings Chemist).

Mike Reeder

Physical Address:
Delta Specialty Coatings LLC
5738 Heiser Street
Houston, TX 77087

Mailing Address:
PO Box 87460
Houston, TX 77287-7460