Ultra Tile Fix ProLevel One is a single part, high strength, rapid drying and curing cementitious smoothing and levelling compound. Available in 20kg bags.The formulation of Ultra Tile Fix ProLevel One incorporates a blend of specially graded fillers, cements and polymers with a rapid curing profile to enable early fixing of tiles even at thicker depth applications.Provides a strong, sound, even base which creates an idea substrate for the fixing of small or large tiles, allowing the tiling process to begin after only 8 hours. Its fast set time (in good ambient conditions) enables light foot traffic in 3 hours.Suitable for a wide range of substrates – concrete sub-floors, tamped or pan floated concrete, sand/cement screeds, existing smoothing compounds, terrazzo/granolithic ceramic tiles, anhydrite/calcium sulphate/gypsum based screeds, plywood/tile backer board and warm water underfloor heating. Ultra Tile Fix ProLevel One is not suitable for use with electric underfloor heating, vinyl tiles or prior to using a DPM or MVS.