ACT uses Ablative Technology to provide excellent season-to-season protection. Ablative Technology enables it to erode away with use and eliminates the build-up of old spent coatings and the heavy sanding needed to remove them. ACT is very effective at controlling shell fouling such as barnacles and zebra mussels and contains a Slime Fighter to control weed, slime and algae growth which helps to keep the boat bottom cleaner longer. It provides excellent protection against all forms of marine fouling in waters with moderate to heavy fouling and can be used in fresh, salt and brackish waters.