E-coating example jewelry

E-coating is a method that uses electrical current to coat a metal surface with an organic lacquer, covering every nook and cranny on the jewellery with an even and consistent protective coat.

This coat protects the Sterling Silver used to create the jewellery and lets the natural beauty of the Sterling Silver come through without fear of damage.

Basically this type of coating considerably increases the lifetime and the shininess of your Jewellery. 

Article courtesy of Wikipedia