BYK 3565 is a surface-active additive that improves leveling and increases the surface energy of aqueous, solvent-borne, UV and 100% systems with anti-cratering properties, especially in aqueous systems. BYK 3565 is a leveling additive that combines good leveling with anti-cratering properties. It can increase the surface energy of the cured coating film in all systems, which positively effects the wetting and leveling of the next coating layer as well as intercoat adhesion. BYK 3565 provides benefits in applications where a smooth uniform finish and improved adhesion between layers is required.