We frequently get requests for “triple plating” i.e.; copper, then nickel then chrome. For many years this was the hot technique, especially for hot rodders and bikers. The downside is that the copper adds unnecessary weight and thickness, in fact, unless care is taken, threaded and press fit surfaces will be compromised. New nickel formulations don’t require copper to adhere to steel and give excellent results. Copper as a base coat does still have a use however; it can be applied with considerable thickness and it penetrates well in to recesses. This provides a thick, soft, base layer which can help fill pitting. Still unless there is a need, we do not use copper.