How long can TotalBoat Aluminum Boat Paint be submerged underwater? Eric Boudreau June 24, 2021 18:24 Updated TotalBoat Aluminum Boat Paint should only be submerged for 24 hours at a time. The final coat of paint should be cured for at least 72 hours prior to submersion. Related articles Which antifouling bottom paint is best for freshwater boating? Is TotalBoat Wet Edge Oyster White close in color to Awlgrip Oyster White? Can TotalBoat Penetrating Epoxy be reapplied to itself while it is still tacky? Can denatured alcohol be used as a surface prep solvent for TotalBoat Inflatable Boat Paint? Can I spray gelcoat? Comments 0 comments Please sign in to leave a comment.