Red. YBA549/1. Gallon. Fiberglass Bottomkote Aqua provides durable and colorfast antifouling which protects against all fouling threats. The water-based formula results in low odor and easy clean-up, combined with a low film thickness for a smooth racing finish. Ideal for use on new boats, trailered, and on inflatables. Suitable water types: Sea water, fresh water, and brackish water. Thinner: Water.