Gallon, Sakrete Concrete Bonder & Fortifier, Specially Formulated To Enhance The Performance Of Concrete, For Increased Strength Between New & Existing Concrete, Mortar, Or Plaster, Just Brush It On To Increase Bond 8 To 10 Times, Use As A Bond Coat Or Admix, Also Used To Greatly Increase Adhesion Impact Strength, Abrasion Resistance & Resistance To Freeze Thaw Damage.