The Ram Tack Spray Adhesive is a high-solids adhesive that provides maximum performance in an adhesive aerosol. It's formulated without methylene chloride and provides a waterproof and flexible bonds for even the toughest jobs. The heavy spray pattern is ideal for uneven or porous substrate bonding such as unpainted cinder block or wood and will effectively bond poly sheeting to walls, as well as providing a more permanent seal when bonding poly to poly. Works on a variety of surfaces: cinder block, brick, wood and more in abatement and restoration. Approved for sale in all 50-states (12) 12 oz. cans per case.