Elmer's Carpenters Walnut Wood Filler Max, for interior and exterior use, is our most versatile and strongest wood filler for Walnut-stain colored wood. Its patent pending formula is ideal for repairing holes, dents, scratches and defects on wood, wallboard, molding or painted surfaces. Ceramic microspheres make this premium wood filler easy to sand and eliminate shrinkage allowing for one easy application. Weather resistant, securely holds mails and screws; compatible with any stain, paintable and sandable, solvent free, non-toxic and easy water cleanup. Now even easier to apply with a new wider nozzle.