Description Tough and flexible crack-filler and sealer applied with standard caulking gun for repairing cracks in concrete, masonry and stucco. Works on vertical surfaces. Helps prevent water and ice damage to masonry surfaces. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov