Description Rust preventative with quick dry adhesion that won't crack or chip under normal conditions. Helps soundproof cars, excellent on new panel and fender replacements, section repairs, weld joints and rust holes. Can also be used to dress tree-wounds, seal asphalt and concrete driveway cracks, and seal eaves and flashing. Aerosol can net weight 1""oz. California / OTC VOC Compliant.