50 -Lb., Sakrete, Gray Surface Bonding Cement, A Trowel Applied Damp Proofing Coating That Can Be Used Above & Below Grade, On Interior Or Exterior Surfaces, Surface Bonding Cement Is Perfect For Dry Stack Black Construction, Requires No Mortar Joints, This High Density Coating Will Strengthen Any Wall System.
WARNING: Cancer and reproductive harm. www.P65Warnings.ca.gov