Designed to dissolve rust 2x faster than the other leading brand, Rust Aid Rust Remover jelly works great on vertical metal surfaces. This powerful formula easily dissolves heavy rust on metal surfaces. To use, remove loose dirt and rust with a wire brush. With a paint brush, apply Rust Remover jelly to the affected surface. Wait 10-20 minutes. Reapply as necessary to keep the surface wet. Rinse with water and allow to dry. Repeat until rust is removed. Dry surface with a clean cloth. Paint or coat the surface within 24 hours to prevent flash rusting. Protect surrounding areas from drips and clean up spills immediately. Wear protective gloves and eye protection. Read entire label before using or storing and keep out of reach of children.