Yes, TotalBoat TotalStrip Paint Remover is safe for use on gelcoat surfaces to remove paint or other coatings. However, it is very important to rinse it off completely before it dries. If TotalStrip is left wet on gelcoat for an extended period, it can damage the gelcoat. If it is allowed to dry on the gelcoat, it becomes difficult to remove but should not damage the gelcoat.