Can TotalBoat Aluminum Boat Paint be used below the waterline? Eric Boudreau May 19, 2021 14:11 Updated TotalBoat Aluminum Boat Topside Paint can be used below the waterline, but it is not designed for extended continuous submersion longer than 24 hours. Related articles Which paint strainer should be used with TotalBoat Wet Edge topside paint? Which thinner do I use? Can TotalBoat Polyester Fairing Compound be thinned? What causes TotalBoat Wet Edge to wrinkle after applying? Why didn't my TotalBoat Wet Edge dry? Comments 0 comments Please sign in to leave a comment.