Professional 1 gallon Heavy-Duty Wallpaper Adhesive is a cost effective commercial grade adhesive designed for the contractor. It is formulated to flow easily through pasting machines. Use for medium to heavy weight wallcoverings. Commercial grade paste designed for contractors. Use for medium to heavyweight wallcovering. Recommended for pasting machine use.High wet tack and can handle the heaviest of wallcoverings. Includes a 1-year limited warranty.