Sakrete® Stone Veneer Mortar is a high performance, polymer modified mortar designed to set and grout artificial stone and natural stone veneers. Can be used over nearly any solid wall including masonry units, poured concrete or plywood. Mortar is only a part of the larger process of installing stone veneer. As such, the information provided here should be used in conjunction with Installation Guidelines for Adhered Concrete Masonry Veneer and local building code requirements.