Bronze powder fillers are more commonly used in resins for producing cold cast metal effects. Generally, higher amounts of metal powder are used to give a true metallic effect. Can be buffed, polished and a patina applied if required. Bronze powder filler can be mixed with a variety of products including forton, polyester, polyurethane and epoxy resins. Can be blended with copper powder at 3:1 (bronze:copper) for unique non-ferrous effects.