Tin is applied in two ways:
Electro-plating: this process is where a metallic coating is formed on the wire as it passes through a chemical solution that contains the tin ions. By applying a negative charge to the wire and a positive charge to the tin anode, the metal from the tin anode dissolves and simultaneously deposits on the negatively charged wire forming a tin coating.
Hot Dip: wire is cleaned in an acid bath, rinsed and dried. The tin coating is then applied by submerging the wire in a tank of molten tin. After the tin is applied to the desired thickness it is cooled in a series of water baths.
