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 How long can TotalBoat Aluminum Boat Paint be submerged underwater? Which thinner do I use? Which paint strainer should be used with TotalBoat Wet Edge topside paint? What causes TotalBoat Wet Edge to wrinkle after applying? Can TotalBoat Polyester Fairing Compound be thinned? Comments 0 comments Please sign in to leave a comment.