High-Volume Copper Finish

Q. I am working on a high-volume project for store fixtures where the displays (shelving units, table legs, hanging racks, etc.) have large parts. The spec calls for cold-rolled steel that is copper plated and oil rubbed. They call their finish darkened bronze. Unfortunately, my area (Western Wisconsin/Minneapolis area) does not have anyone with large enough tanks to do the work, and I am searching for other options. Is it possible to achieve the desired look with powder coating? Any recommendations on product or process? Do you know of any companies who are currently providing this finish? B.G.

A. You could probably obtain the look you want using a powder coating, but will have difficulty matching the performance of copper plating in this application. Powder coatings are used extensively in store fixtures (shelving, racks, displays, etc.). However, if you notice, the hanger bar is almost always constructed out of plated steel. Plating is harder than powder coating and can withstand the abrasion of hangers rubbing on its surface.

Discuss the option of using powder coatings for all components of the store fixtures except the hanger bars with your customer. See if they are happy with the new look and proceed. But under no circumstances should you recommend to powder coat the hanger bar or any other high-abrasion area.