How long can PVA be allowed to stay on gelcoat after it has cured? Eric Boudreau April 21, 2021 19:52 Updated There is no maximum amount of time that PVA can be allowed to stay on gelcoat after it has cured. Related articles What is the cure time for TotalBoat Gelcoat without wax? Do you have any tips for applying gelcoat by brush/roller? Does polyester resin have UV stability? What is the coverage for TotalBoat Gelcoat? What is the shear strength of TotalBoat 6 lb. Density Flotation Foam? Comments 0 comments Please sign in to leave a comment.