Copper Octoate is an anti-fouling agent. it is use in ship bottom paints. Copper Octoate hydrolysis gradually in to copper hydroxide & octoic acid in the presence of seawater, copper hydroxide is an active toxicant. It is use as a rot proofing agent in textile, cordage etc.& to prevent dry rot & mildew grow in timber. Copper may be applied on textile fabrics by dipping, spraying or impregnation. The recommended dosage is 2 % to 2.5 % as metal.