Ultra X8 Polymer Fortified Flexible Adhesive is suitable for use on cement sheet, suitable waterproof membranes, renders, screeds and masonry surfaces, both internally and externally. Also suitable for plasterboard in internal areas. Ultra X8 Polymer Fortified Flexible Adhesive can be fortified with LATICRETE Latex Additives for a wide range of installations. Exceeds the requirements of AS ISO13007.1&2 as a C1TES1 classification