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Electroless Nickel is a chemical reduction process whereby any catalytic surface in contact with the plating solution is coated uniformly regardless of part size and shape without the use of electrical energy. This differs from electrolytic deposition where thickness depends on current density distribution over the part surface. With electric deposition, thicker deposits build up on outside corners and edges (high current density) and thin to no plating is built up in recesses (low current density). Unlike electrolytic deposition, the thickness of the electroless nickel deposit depends solely on the deposition rate and the length of time the part is immersed in the solution.
By increasing surface hardness, Electroless Nickel improves resistance to friction, wear and corrosion. Due to its unique properties of excellent corrosion resistance, combined with a high wear resistance and uniformity of coating, Electroless Nickel is used extensively in a number of industries including aviation and aerospace, oil and gas, automotive, chemical processing, food and pharmaceutical applications. The variety of parts electroless nickel plated often include such items as cylinders, gears, valve components, electrical connectors, and sprockets.
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