 it's three pounds of a powder has a bonding agent in it and it's designed for overhead concrete patches and vertical patches but i think i'd try the anchoring cement first just based on the thickness that you're going to need would i use bonding bonding cement bonding primer on that as well no on that you're it's got a bonding agent in it on the anchoring cement and the zip it mortar okay all right then the other thing is just a kind of a