Most coatings are painted on, though some are plastered on with a trowel. Except for epoxy coatings, all are cement-base products with various additives. Epoxy does the best job. Look for coatings at home improvement or masonry supply centers. Patch cracks in walls and floors with Portland or hydraulic cement patching compound.
Hydraulic cement expands and dries quickly, even in wet conditions.
This will prevent water pressure from popping out of the patch. Chisel out cracked mortar joints in masonry walls and fill them with hydraulic or epoxy cement. Water that comes through cracks in a concrete floor or through the joint between the floor and wall is caused by hydrostatic pressure. Adding a sump pump. Laying a new floor over a waterproof membrane placed on the old floor.