Permalac NT Bronze is a fast-drying, easy-to-apply acrylic lacquer coating. It is a transparent tinted, low VOC formula that lays down similar to paint. It can be applied on lightly colored surfaces to yield an antique bronze-colored appearance. Permalac NT Bronze is highly resistant to environmental breakdown caused by UV, acid rain, and salt. It has outstanding adhesion to various substrates, including patinated and polished metals, hardwoods, and masonry or stone products. Users report excellent results on copper, brass, bronze, steel, aluminum, zinc, and painted wood substrates. This is a 4-quart bundle. Safety and technical data pages are available here. Certificates of analysis are available here.