Hard chrome, also know as industrial chrome or engineered chrome, is used to reduce friction, add wear resistance, or increase corrosion resistance. it is very hard, measuring between 66 to 70 HRC. Hard chrome tends to be thicker than the decorative treatement, typically ranging from 0.075 to 0.25 milimetre (0.0030 to 0.0098 in), but can range from 0.005 to 0.01 mil (0.00013 to 0.00025 mm). Surface defects and roughness are amplified, because hard chrome does not have a leveling effect. Hard chromium plating is subject to different types of quality requirement depending on the application, for instance, the plating on hydraulic piston rods are tested for corrosion resistance with a salt spray test.

Zinc plating is identical to electro galvanizing in principle in that both are electrode position processes. Zinc plating is used for coatings deposited on small parts such as fasteners, crank handles, springs, and other hardware items. The zinc is supplied as an expendable electrode in a cyanide, alkaline non-cyanide, or acid chloride salt solution. Cyanide baths are the most operationally efficient, but they potentially create a pollution and hazardous material problem.After alkaline or electrolytic cleaning, pickling to remove surface oxides, and rinsing, the parts are loaded into a barrel, rack, or drum and immersed in the plating solution. Various brightening agents may be added to the solution to add luster, but careful control of the bath and brightener is needed to ensure a quality product. Post-plating treatments may be used to passivate the zinc surface and at the same time impart various translucent colors to the coating. These post-plating treatments may be used to provide a desired color or to extend the life of the plated coating.The normal zinc-plated coating is dull gray in color with a matte finish, although whiter, more lustrous coatings can be produced, depending on the process or agents added to the plating bath or through post-treatments. The coating is thin, ranging up to 1 mil (25 m), restricting zinc-plated parts to very mild (indoor) exposures. ASTM Specification B 633 lists four classes of zinc plating: FeZn 5, FeZn 8, FeZn 12 and FeZn 25. The number indicates the coating thickness in microns. The coating finds application in screws and other light fasteners, light switch plates and other small parts. Materials for use in moderate or severe applications must be chromate conversion coated.

PEPCOAT is the trade name of our quality phosphorus- Nickel metal alloy coating. We undertake coating of customer parts ranging from small fasteners to large rollers and Chemical Equipment.A New and unique Engineering Plating Chetana is a Job shop where we do Electroless Nickel plating on customer parts equipment, We are the pioneers in this field and besides being the most experienced, have one of the largest plating facilities in India. Our plating called PEPCOAT and technically known as Electroless Nickel is an unusual plating because it does not have the handicaps of conventional Electroplating, and offers the following :