Interlux ACT Ablative Antifouling Bottom Paint Interlux ACT Antifouling Paint Ablative provides excellent season-to-season protection. Its formula includes Interlux Ablative Technology to remove fouling, eliminate coating build-up and with it the need for intensive sanding to remediate. Interlux ACT bottom paint is highly effective to control shell fouling from barnacles and zebra mussels. To combat slime, the paint contains additives that control weeds, slime, and algae growth to keep the boat