Economic SP-Sea 74030, from Hempel, is a self-polishing copolymer antifouling. The product is recommended for cost-effective newbuilding and dry-docking systems where excellent fouling protection is required. Economic SP-Sea 74030 provides proven high-performance fouling protection for up to 36 months. It works effectively through the self-polishing effect of the organotin copolymer. The self-polishing effect means a bio-active surface is maintained during the entire service life of the system.