Black Widow's powerful dual-biocides provide multi-season protection in all waters. Black Widow is easily applied by roller, brush, or spray and is easily burnishable to a metallic gun-metal shine. Black Widow makes an excellent paint for the bottom of any boat where speed is the number one priority, including racing sailboats, and high performance offshore powerboats. Black Widow contains four strong slickening agents: Molybdenum Disulfide, PTFE, Graphite and Silicon.