Mircon Extra is a long lasting antifouling that protects against all types of fouling. It wears away at a controlled rated, reducing paint buildup and includes Biolux to control slime. Plus your boat can be hauled and relaunched the following season without repainting. Suitable for power and sailboats in all waters Biolux technology blocks slime and improves antifouling performance Haul and relaunch without repainting Use with thinner 433 - sold separately.