I need to re-level a concrete floor on which I shall be laying a solid wood floor. The floor will be glued to the new surface of the concrete using an adhesive called "Polyurethane 40". Does anyone know whether it would be best to use a standard water-based levelling compound, or a latex-based compound in order for the adhesive to bond? Also, is the technique for laying either type the same? Is either any easier/harder?