Skip to content

MIL-R-46085
Specifications

Technical Notes

About

Electrodeposition of Rhodium over metallic surfaces.

Classification (thickness)

  • Class 1 – 0.000002 inch minimum
  • Class 2 – 0.00001 inch minimum
  • Class 3 – 0.00002 inch minimum
  • Class 4 – 0.0001 inch minimum
  • Class 5 – 0.00025 inch minimum

Underplating

Surfaces other than nickel, silver, gold, or platinum shall be nickel plated in accordance with QQ-N-290. Underplating must be used when parts are corrosion or heat resistant steels. Underplating thickness will not be used in determination of rhodium plating thickness.

Finish

When required reflective purposes, the plating shall be sufficiently smooth to give a reflectance of at least 75%.

When rhodium plated surfaces are to be tested for reflectivity, the angle of reflection and incidence shall be measured at 45 degrees plus or minus two degrees. A flat surface shall be used for reflectivity tests.

Ordering Data

Procurement documents should specify the following:

  • Title, number, and date of the specification
  • Class of plating required
  • Whether a preproduction sample is required
  • If surface is required for reflective purposes
  • Sampling plan and acceptable quality level
  • Preparation for delivery requirements

Ready to get started?

Talk to an industry expert about the best solution for your application.

Resources

AOTCO Metal Finishing Senior Managers Receive Patriot Award

AOTCO Metal Finishing Vice President, John Cote, and Production Director, Rob Capaldo, Honored by Department of Defense for Extraordinary Support of Employees who Serve...

AOTCO Supports Medical Device Industry With ISO 13485:2016

AOTCO Metal Finishing has been awarded ISO 13485:2016 certification. This certification provides AOTCO the opportunity to expand its partnerships and collaborations with...

AOTCO - Manufacturing In Focus Interview

The finishing materials for aircraft components, missiles, spacecraft and satellites are mission-critical in aerospace operations. Without that fine, protective coating,...

Services & Capabilities

Electroplating
Anodizing
Passivation
Plating Substrates
Pre- & Post-Process Treatments
Dedicated Outsourced Finishing
electroplating-1

Electroplating

Electroplating

Electroplating is a process by which one metal is deposited onto a base metal (substrate). These deposited metals offer a variety of benefits including thermal and electrical conductivity, corrosion resistance and more. AOTCO electroplates a wide variety of both standard and exotic metals.

Learn More
IMG_3850-2-1

Anodizing

Anodizing

Sometimes called a “conversion coating” Anodizing is an electrolytic process in which an oxide (anodic) layer is chemically built on the surface of the substrate material, providing anti-corrosion and other benefits. AOTCO offers, Type I, Type 2, Type 3 and Titanium anodizing services.

Learn More
Meal-Finishing-AOTCO-Service

Passivation

Passivation

Passivation is a term for a variety if processes that make a metal (most commonly stainless steel) or other substance unreactive, or passive, by altering the surface layer or coating the surface with a thin inert layer. AOTCO performs both citric and black oxide passivation techniques to a range of specifications.

Learn More
Beryllium

Plating Substrates

Plating Substrates

AOTCO plates on a wide variety of Common, Exotic and Non-Metallic substrates, bringing exceptional expertise to magnesium, titanium, beryllium, BeCu, TeCu, tungsten and more. In some cases we pass as high as 450 degrees celsius, allowing for high temperature soldering, brazing, or post machining operations after plating.

Learn More
Laser-Engraving-AOTCO-Service

Pre- & Post-Process Treatments

Pre- & Post-Process Treatments

Pre-Process: In addition to offering both mechanical & chemical cleaning options, AOTCO specializes in creating solutions for complicated, difficult and tight-tolerance masking challenges. Post-Process: For clients with specialized needs AOTCO offers laser marking and engraving options, including color change caused by chemical or molecular changes, charring, foaming, melting, ablation, and more.

Learn More
captive-plating-AOTCO-Service

Dedicated Outsourced Finishing

Dedicated Outsourced Finishing

Part of our cornerstone goal of building long-term, collaborative & solution-oriented partnerships, AOTCO will devote reserved physical and human resource capacity for our clients with long-term finishing and deadline requirements. For these partnerships our commitment is that AOTCO manages the process, while YOU control the results.

Learn More