Metal Glaze® Ultra is the world’s best sanding putty for use as a finishing coat over body filler, large panels, or small spot filling. The formula is incredibly smooth. Its unparalleled sanding qualities are a result of the Evercoat’s exclusive EcoResin™. Its unique thinner viscosity makes it ideally suited for intermixing with other Evercoat products to improve your process. Formulated with ZNX-7® for improved adhesion.