Polyester Aircraft Filler

APF 4 is a high quality, quick-setting filler designed for industrial applications. It has excellent mixing and handling properties and provides exceptional adhesion with a minimal amount of shrinkage. APF 4 bonds to a wide variety of materials including wood, aluminum, cast iron, cast steel, tool steel, copper, bronze, fiberglass (FRP and SMC), honeycomb paneling and urethane foam. With its fast set time and superb machining and finishing characteristics, APF 4 is a time saver. From application to finished repair, many jobs can be completed in less than 20 minutes.