Rust Bullet provides durable surface protection that is scratch, chip, chemical and UV resistant. Anti-fouling bottom paints reduce or eliminate marine growth that develops on a boat’s underwater surface. Anti-fouling paints do this by using chemicals that slowly release to repel underwater aquatic life. Most anti-fouling paints require a chemical reaction with the surface to which it is applied for proper adhesion. If using anti-fouling paint, please refer to the FAQ regarding the use of a marine tie-coat. Always check with the anti-fouling paint’s manufacturer before applying an anti-fouling paint over Rust Bullet.