What is Armoloy® ?
Armoloy® Thin Dense Chromium is a low-temperature (58°C to 60°C), surface coating process based on chrome-plating technology, but displays higher hardness, along with better lubricity and corrosion than any other chromium coating on the market. Through a proprietary chemical solution, Armoloy® is produced as a hard, thin, dense chrome coating, where its micro-nodular surface texture boasts benefits that other coatings can’t produce, enhancing use, and reducing wear.

Properties of Armoloy®

• High hardness – At 78HRc, Armoloy® Thin Dense Chrome is one of the hardest coatings available.

• Nodularity – A key property of Armoloy® is a nodular effect which increases lubricant retention and reduces surface contact area. This in turn improves the wear life and reduces friction.

• The dense nature of the coating means high corrosion resistance as the coating is almost free of micro-cracks (conventional chrome +/- 40 micro-cracks per cm2)

• Absolute adhesion - Armoloy® coating will not chip, flake, crack, peel or separate from the base metal under standard ASTM bend tests or under conditions of extreme heat or cold.

• Uniform deposits without thickness or edge build-up

• No requirement for post finishing (except special applications)

• Matt silver satin chrome finish
• Thermal Stability of between -240°C and 870°C
• Can be applied locally





Typical Thickness
The standard deposit thickness of Armoloy TDC ranges between 0.0025 -0.0075mm (2,5 – 7,5 microns) with a tolerance range of 1.5 microns.

Being a versatile coating, Armoloy® can be applied on a variety of shapes, sizes, forms and surfaces, creating a hard, slippery, and corrosion resistant surface. It can be applied to internal diameters as well as down blind holes as well as threads and flutes. There is no loss in definition or profile of the surface and even scratches and blemishes, are reproduced in detail with 100% adhesion to the base metal.
Various industries have used Armoloy® with great effect.
• Automotive - Engine and transmission parts such as valves, valve guides, pistons, gears and splines are protected without detrimental tolerance changes or variations.
Food and Pharmaceutical Processing - Armoloy’s nodular Thin Dense Chromium protects processing equipment against wear and corrosion without lubrication. Armoloy® coating resists attack by most organic and inorganic compounds, and is approved for use by the US FDA.
• Bearings and bearing surfaces coated with Armoloy® can run longer and cooler and are comparable to a 440C Stainless Steel for corrosion protection.
• Plastic and Rubber Moulding -- Plastic moulds have better release characteristics and reduced die wear when moulding abrasive materials. Armoloy® is also applicable on slides and locks and rotating cores.
• Nuclear components such as stainless control rods and tubes, adjusting nuts and bolts, grippers, lock pins and threaded components exhibit better anti-galling and corrosion resistance properties.
• Die Casting prevention as well as repair to heat checking can be performed on die casting moulds and gates and cores.
• Pumps and Valves with Armoloy® coated components handle corrosive liquids and abrasive materials with longer life.

Safety & Cleanliness

FDA/USDA approved for use, without concern on food processing equipment, in clean room environments and medical/pharmaceutical applications. Independent testing has proven no issue of toxicity or skin irritation in Armoloy coated parts.

Benefits

For more downloadable info and links regarding this coating and others please visit our Literature & Useful Links