Gallon, #444, FRP Panel Adhesive, Use For Fiberglass Reinforced Panels, May Be Used Over Dry Concrete, Wood Studs, Plywood, Plaster, Drywall, Polystyrene Foam Insulation, High Strength, Fast Setting, Moisture Resistant, Non-Flammable, No Open Time Required, 30 Minute Working Time, VOC Compliant, 10 Year Warranty.