Rust-Oleum® Marine Coatings Anti-Slip Additive enhances safety by providing a skid-resistant surface on boats, docks, and other marine structures. Designed for easy mixing into oil- or latex-based marine topcoats, this fine pumice additive delivers traction without altering the color, performance, or properties of the paint. Ideal for wood, metal, fiberglass, and concrete surfaces in wet or high-traffic areas.