ARMOLOY® Company of Philadelphia since 1969

Phone: 215.788.0841
Armoloy TDC Thin Dense Chromium Coating for Superior Metal Protection, Friction, Wear and Corrosion Resistant Solutions, Armoloy of Philadelphia

Armoloy TDC Coating – Thin Dense Chromium Coating Applications

Protect your investment with  Armoloy TDC (thin dense chromium) coating for wear and corrosion resistance.

What is ARMOLOY Thin Dense Chromium Coating?

Armoloy Coating Applications – The Industry Gold Standard in Coating Technology

ARMOLOY is a low-temperature, multi-state metal finishing process based on chrome plating technology.
Unlike conventional chrome plating processes, ARMOLOY utilizes proprietary chemical solutions and application processes that are carefully monitored to produce its TDC (thin dense chromium) coating which follows the exact contours of the base metal with controlled deposit thicknesses.

Value-added benefits of ARMOLOY TDC Coating

  • Protects metals from wet and dry abrasion
  • Reduced wear and friction of moving parts
  • Enhanced corrosion resistance
  • No chipping, cracking or peeling from the base metal
  • Improved release characteristics on plastic molds
  • Reduced maintenance and machinery replacement costs
  • Smoother, faster and quieter running equipment

Armoloy® Extraordinary Properties

All threads, flutes, even scratches and blemishes are reproduced in detail with 100% adhesion to all base metals. RMS finishes will improve slightly, to 8.
Surfaces greater than 62 will be greatly improved. Internal and external surfaces on nearly all shapes and configurations can be uniformly processed. In general, slots or grooves less than 0.187? wide, having a depth greater than width, and bores less than 0.187? diameter may not be uniformly processed. Such parts should be submitted for test applications. Used as the final coating on parts and equipment, Armoloy imparts an attractive satiny silver matte or nodular finish. Armoloy chromium coatings are a superior alternatives to surface finishes such as “flash” hard chrome, Gullite, Duralloy Thin Dense Plating, Metalife Hard Chrome Plating.

Armoloy Wear and Corrosion Resistant Solutions

Use Armoloy for friction, wear and corrosion resistance!

Armoloy® Company of Philadelphia

ARMOLOY coated parts reduce friction, increase wear life and enhance corrosion resistance.

Wherever ARMOLOY-to-ARMOLOY coated parts contact each other, these characteristics are further enhanced for even less friction, longer life and corrosion resistance.

ARMOLOY can be applied to all gas nitrided surfaces.

All nitrided components submitted for ARMOLOY® coating must be clearly marked and identified as nitrided parts.

A Wide Range of Base Metals Suitable for Armoloy Coating:

Ferrous: Stainless Steels (All)

  • Tool Steels
  • Cold/Hot Roll
  • Bearing Grade Steels (52100, M-50, BG-42, etc.)
  • Alloy-enhanced Steels
  • Pre-hardened Steels
  • High/Low Carbon Steels
  • Cast Iron


  • Bronze
  • Inconel
  • Beryllium
  • Copper/Copper Alloys
  • Brass

Aluminum, magnesium, and titanium are not recommended for Armoloy coating.


Armoloy TDC (Thin Dense Chrome) is a hard (78 Rc), thin, dense chromium coating with a micronodular surface texture. Developed to protect and enhance a wide range of manufacturing tools and components, Armoloy TDC is applied in a chemical bath by means of a proprietary process.

The coating’s nodular finish reduces the amount of surface area exposed to surfaces in contact with it, thereby substantially reducing friction and extending wear life. This nodular finish also retains smaller amounts of industrial lubricants for longer periods, both further reducing friction and creating a cleaner work environment.

Armoloy TDC is commonly applied to bearings, tools and dies, plastic molding components, food processing and packaging equipment, automated machinery, engine components, oil and gas drilling tools, pumps, and any component where wear, abrasion, high friction, and corrosive environments are a concern. The coating may be applied to tool steels, stainless steels, copper alloys, bronze, and brass.

Typically applied at a deposit of .0001/.0003″ (2.5/7.5 microns), Armoloy TDC is effective at deposits as low as .00005″ (1 micron). The uniformity of the deposit, even on tightly-toleranced components, allows Armoloy to return a finished product to the end-user.

Armoloy TDC Thin Dense Chromium Coating for Superior Metal Protection, Friction, Wear and Corrosion Resistant Solutions,  Armoloy of Philadelphia


Plastics & Rubber Molding

Whether your process is Injection Molding, Blow Molding, Extrusion Molding, Reaction Injection Molding, you can improve the speed and efficiency of your molding operation.

Linear Motion

Linear Motion components are prevalent in many industries including Packaging, Material Handling, Aerospace, Pharmaceutical, Semiconductor, Factory Automation, Robotics, Solar and Wind Energy.


The lifetime and performance of bearings can be improved by the application of Armoloy chromium coatings. Manufacturers can choose standard ferrous steels such as SAE 52100.

OEM Machine Tools

Armoloy Chromium coatings provide outstanding wear and corrosion protection for machine tools of all types. The Armoloy process ensures the deposition of precise (normally .0001” to .0003” thick) deposits of 99% chromium to virtually any metal surface, with the exception of Aluminum.

Food Processing & Packaging

Armoloy® chromium coatings protect a variety of metal components that are utilized in the food and beverage industry. Component lifetime is extended by protection against wear and corrosion. Friction is reduces by the unique, nodular, thin dense chromium surface finish.

Die Casting

Die Casting companies chose Armoloy chromium coatings to increase their production efficiency and reduce their maintenance costs. Armoloy increases the wear resistance of die components due to its hardness (HRC 78).

Armoloy® Exclusive Technology gives maximum protection and unparalleled performance.


Armoloy® of Philadelphia, Armoloy Coating, Armoloy TDC  Chromium Coating for Superior Metal Protection, Friction, Wear and Corrosion Resistant Solutions, Wear Resistant Coating, Armoloy of Philadelphia

Armoloy® Company of Philadelphia 1105 Miller Avenue Croydon, PA 19021 Phone: 215.788.0841 Fax: 215.788.0842 Email: Website:

Contact our Armoloy experts today at 215.788.0841 for more information!