Ultraplan Eco 20 is a rapid hydrating, fast-drying, self-levelling smoothing compound. It is a grey powder made of special cements with fast setting and hydrating properties, selected graded silica sand, resins, and special additives developed in MAPEI Research Laboratories. When mixed with water, it becomes a fluid, easily workable, and perfectly self-levelling compound with high bond strength to the substrate. Ultraplan Eco 20 can be applied in thicknesses up to 10 mm per layer without shrinkage, cracking, or crazing, and develops good compressive and flexural strength, as well as resistance to indentation and abrasion. For thicknesses greater than 10 mm (up to a maximum of 20 mm), it may be necessary to add graded sand or use a product more suitable for thicker sections, such as Ultraplan Maxi. Due to its rapid hydration formulation, subsequent installation of most types of flooring can begin approximately 12 hours after application, regardless of thickness. For resilient flooring, a minimum of 24 hours is recommended before application. It has very low emissions of volatile organic compounds (EMICODE EC1 R Plus) and is harmless to the health of the installer and the end-user.