How long can PVA be allowed to stay on gelcoat after it has cured? Eric Boudreau March 25, 2021 17:34 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? What is the coverage for gelcoat? Do you have any tips for applying gelcoat by brush/roller? What is the shear strength of TotalBoat 6 lb. Density Flotation Foam? Does polyester resin have UV stability? Comments 0 comments Please sign in to leave a comment.