If you prefer to permanently bond your G-Floor polyvinyl flooring atop a plywood substrate, G-Floor Marine & Outdoor Adhesive is the only choice to guarantee your floor looks its absolute best after it is installed. Our specially-formulated adhesive is a high-strength, water-based, UV-stable bond that can be used indoors or outdoors for a multitude of applications (decks, trailers, mobile units, kitchens, offices, etc.).