Traditional ANTIfouling (soluble matrix) based on copper oxide. It changes to its final color after about a week of exposure to water. Usage area: As an antifouling for fiberglass, wood, plywood, steel and ferrocement boats. With speeds below 15 knots. Do not use on aluminum or other metal alloys light, risk of corrosion in case of direct contact. COLORS: BLACK-RED BROWNFOULING CLASSIC R.5000 BLACK COLOR