Mapei Ultralite S1 Grey is a one-component cementitious adhesive with no vertical slip, long open time and extremely high yield. Flexible and lightweight, it’s made from cement, selected graded sand and a high amount of synthetic resin, with recycled silica micro-spheres which helps to make the mix lighter. This high-performance adhesive is easy to apply by trowel, with excellent wetting properties, very low emission of volatile organic compounds for ceramic tiles, stone and thin porcelain tiles. The innovative Low Dust technology of this adhesive considerably reduces the amount of dust given off when mixing the product compared with standard Mapei cementitious adhesives, making floor layers work easier and healthier. What’s special about this product? > Lightweight > Low Dust technology > Low density > Low emission