Pettit Neptune HRT Water-Based Bottom Paint Pettit Neptune HRT bottom paint uses the latest technology available to create a hybrid paint film strong enough to handle the tough marine environment without building up over time. Soap and water cleanup, along with no strong solvent smell, yields a user-friendly application. Neptune HRT antifouling paint does not require sanding between coats, saving time and money. With low VOC its ideal for marinas under restrictions. HRT Hybrid Reactive Technolog