The USC AG47 Lightweight GRIP Filler is formulated with a proprietary resin blend to provide adhesion, sanding and performance. The company's Z-TEK Adhesion Booster helps maximize bonds to bare steel, galvanized metals and aluminum while INVISX Micro-Perfecting Surface Technology provides a smooth, pinhole free finish. The filler helps reduce cycle time and sandpaper use with AG47's non-loading, fast curing formula. It is available in gallon (No. 17000) and half gallon (No. 17005) containers.