Old Masters Satin Interior Oil Base Polyurethane, Quart is specially formulated to protect and enhance the beauty of wood, metal, and fiberglass surfaces. This oil-based satin polyurethane provides a durable finish that can be applied to unfinished wood or previously finished surfaces that have been properly prepared. Its protective qualities help maintain the natural look and longevity of your interior projects, making it an i choice for a variety of applications. Model Number: