Are manufactured in the USA from authentic turn of the century dies offering the highest quality. 100% real metal at affordable prices. Real anodized copper, brass & stainless steel. For direct application to ceiling and walls. Steel panels are very sharp. Heavy-duty work gloves must be worn at all times when handling the panels. Bare steel panels come unfinished and need to be treated with an oil-based paint. For best results use semi-gloss or high-gloss paint to prevent rusting or tarnishing. To leave steel panels in natural state, use clear gloss enamel by Rustoleum. Pre-painted white, copper plated and stainless steel panels come with a PVC covering to prevent scratching and a lacquer to prevent rusting. No painting or finishing necessary. Products are manufactured from 30 gauge (.010) tin-free steel, which is chromium treated for good paint retention. Panels should be installed using backerboard or hold down clips.