Sherwin-Williams Aerospace Coatings launches Fill Bond Flex Aerospace Filler (FBF100) as a new, convenient method for filling seams, rivets and small spot repair areas on aircraft prior to painting. The high-quality, two-component polyester filler kit is designed to block and permanently conceal surface imperfections on composite exterior aircraft surfaces. The lightweight filler provides performance, versatility and productivity by offering strong adhesion, resistance of shrinkage, sandability, flexibility, and stain resistance, making it ideal for creating smooth surfaces for topcoat applications.