Masterseal np1, 10.1 oz, limestone, 1 component, high performance, non-priming, gun grade, elastomeric polyurethane sealant, it requires no mixing & typically requires no priming to bond to many materials, including concrete & masonry.
WARNING: This product can expose you to chemicals including toluene diisocyanate, which is known to the State of California to cause cancer, and toluene, 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.