Pettit Premium HRT Multi-Season Antifouling Boat Bottom Paint Pettit Paints line of HRT bottom paints. Pettit HRT Premium provides excellent antifouling protection and is equally effective on both power and sailboats. This paint utilizes the latest technology available to create a hybrid paint film strong enough to handle the tough marine environment. Pettit HRT Premium provides impressive coverage, is easy to use, and has a smoother finish than traditional paints. HRT Hybrid Reactive Technology