High performance white cement mortar formulated for grouting all types of ceramic floor and wall tiles, stone materials, vitreous mosaic and marble, indoors and outdoors. Constituted of a blend of cement, aggregates with controlled grain size, special additives, selected synthetic resins and additives with elevated water-repellent properties. Once mixed with water, it creates an easy to spread thixotropic paste with excellent adhesion to all of the materials generally used in construction. Mixing with LATEX, a special synthetic resin based additive, improves the final characteristics of GROUT ECOSTUK and obtains good levels of resistance even in severe working conditions. Note: Can be coloured with our IDROCOLOR series pastes.