Copper Plating provides a coating which is reddish in appearance. Copper can range from matte to bright finish which often depends on the surface brightness of the part. This finish provides good corrosion resistance, but also has the tendency to easily tarnish. Copper is a great coating for solderabilty of small parts, and it also provides an economical finish for parts that require low electrical resistance.
Brightness of part can depend greatly on surface finish of base material.

E/Ni can be plated over a wide variety of metals including aluminium, titanium, mild steels, stainless steel, hardened steel, copper, brass and zinc die-cast. Electroless nickel provides:
Uniform coating on most complex,and/or Irregular surfaces.
Improves resistance to galling.
Provides a hard, wear resistant surface.
Electroless Nickel is an auto-catalytic chemical reduction coating requiring no electricity to process. The phosphorus content of the bath determines the hardness and corrosion resistance of the coating. With the addition of a baking operation following the plating, hardness of coating is enhanced.
A process with a high degree of plating uniformity, Electroless Nickel allows for the finishing of complex parts since all wetted surfaces are plated. A wide variety of substrates can be finished with Electroless Nickel and is ideally suited for engineering components. The deposit is harder than electrodeposited nickel and offers excellent wear and corrosion resistance.

Tin plating is a process which provides a bright silver finish and is composed of at least 99.5% tin. This type of plating is commonly used to provide a surface with great solderability and some corrosion protection. Typically tin plating is used in the printed circuit board industry, the food industry, as well as for decorative purposes. The main application for tin plating in the circuit board industry is to make use of the tin's solderability. On such substrate materials as brass or zinc die cast it is necessary to use a barrier layer of either copper or nickel to impede the migration of the zinc into the tin deposit. This barrier layer will further increase the shelf life of the tin plating on these substrate materials.
Base Materials that Tin Plating can be applied to include steel, stainless steel, brass, copper, zinc die cast, and aluminium.

Zn-Ni alloy coatings (usually composed of approximately 85% zinc and 15% nickel) are electroplated on carbon steel as a protective coating in a process similar to the way zinc coatings are applied. Zn-Ni coatings typically consist of 8 to 14 µ m layer of 12 to 16% nickel alloy next to the substrate topped by a 0.06 to 0.15 µ m trivalent passivate layer and a 0.5 to 4.0 µ m top coat layer.
Zn-Ni alloy coating significantly exceeds the protection offered by other coatings in three main areas:
• It offers greater corrosion protection.
• It provides more wear resistance in moving parts.
• It limits thermal stress to parts subjected to higher operating temperatures.

Zinc Plating is frequently used to protect metals such as iron and steel against the relentless forces of corrosion. Zinc Plating involves the electrodeposition of a thin coating of Zinc metal onto the surface of another metal object. The Zinc coating creates a physical barrier that prevents rust from reaching the underlying metal surafce.
We do all types of passivation like hexavalent blue, yellow, olive green and black, and also trivalent blue, yellow and black as per the desired salt spray requirements.