Electroless Nickel Plating (EN) An auto-catalytic chemical technique used to deposit a layer of nickel-phosphorus or nickel-boron alloy on a solid work piece, such as metals or plastic. The alloys with different percentages of phosphorus, ranging from 2-5 (low phosphorus) to up to 11-14 (high phosphorus) are possible. The metallurgical properties of these alloys depend on the percentage of phosphorus. » More Electroplating Terms |