Refractory mortar for laying and grouting firebricks. Cementitious mortar for refractory bricks. Features excellent resistance to high temperatures and extreme temperature changes without shrinkage, high initial and final adhesion strength and great resistance to moisture. Application fields: Specially designed for bedding and jointing of all types of firebricks in high-temperature environments (fireplaces, wood-fired ovens, barbecues, chimneys, etc.).