Hartford Finishing is the largest contract powder painting company in Wisconsin. We utilize state of the art technology available on six separate paint line systems and offer over 500 in stock colors. E-coating is an immersion wet paint finishing process that uses electrical current to attract the paint to a metal surface. The E-coat process is similar to what is used in metal plating, except the finish uses organic paint particles - not metal particles in the immersion baths. Hartford Finishing has the ability to wet paint.