Sikafloor®-245 Level Deep Fill Ultra is a 1-part, thick bed, cement-based smoothing and resurfacing compound for levelling out very uneven floors and screeds up to a depth of 50 mm in one coat. It is typically used for levelling floors prior to laying ceramic and thermoplastic tiles, lino, wood block flooring or carpet. When mixed as directed, the compound provides a free flowing/trowelable mix.