Bostik Cempolatex 1 Pack is a latex modified, protein-free self-smoothing sub-floor compound. It has excellent bonding properties and good flexibility that will accommodate the movement of closely fitted suspended flooring. This rapid setting formula is ideal for smoothing and levelling properly prepared concrete, sand/cement screeds, quarry tiles, rigid timber floors, stone, brick and terrazzo floors and asphalt floors. It may also be used as a floor topping/concrete re-surface with the addition of Bostik SBR, and for patching up to 100mm thickness. Bostik Cempolatex 1 Pack is only suitable for warm water underfloor heating systems when used as a levelling compound.