Adhesive and patching mortar for fastening insulation boards from mineral wool and for immersing mesh in the surface reinforced layer within the buildings insulating system SEMPRE TERM WM. Provided in form of a dry mix, ready to use after mixing with water. Mortar to be used for new buildings, as well as ones subject to thermo-modernization. After bonding remains flexible. Frost proof Shows high impact resistance. The product contains fibres Also available in version TESOROMONT WM-200 IGLOO to be used in winter time or in low temperatures.