Ultraplan Maxi is an ultra-fast hardening, self-levelling smoothing compound. It is a grey powder composed of rapid setting and hydrating special cements, selected graded silica sand, resins and special admixtures, developed in MAPEI Research Laboratories. When mixed with water, it becomes a highly fluid, easily workable mortar with perfect self-levelling capacity, high adhesion to the substrate, and ultra-rapid drying. It can be applied with an automatic pressure pump. Ultraplan Maxi can be spread in thicknesses from 3 to 40 mm per coat without shrinkage, cracking or crazing. It develops very high compressive and flexural strength, as well as resistance to indentation and abrasion. The product is ready to receive flooring as soon as it has dried, with the time depending on the thickness, environmental temperature, relative humidity, and substrate absorption. Ultraplan Maxi has very low emissions of volatile organic compounds (EMICODE EC1 Plus).