Description
UltraTile ProLevel One Deep – Rapid-Set Deep Fill Floor Leveller
UltraTile ProLevel One Deep is a single-part, high-strength, rapid drying and curing cementitious smoothing and levelling compound purpose-built for deep fill applications. Formulated with a blend of specially graded fillers, cements and polymers, it gives a strong, sound and even base for fixing small or large format tiles in one pour – even at thicker depths where standard levellers fall short. Its rapid curing profile means light foot traffic is possible after just 3 hours, with tiling able to begin after only 4 hours, keeping projects moving and reducing costly downtime on site.
Key Benefits
Deep fill formulation for internal applications from 3–60mm in a single application, removing the need for multiple pours on uneven or damaged subfloors. A protein-free formulation delivers superior flow properties and shrinkage compensation for a smoother, more reliable finish, while flexible properties make it suitable for use over warm water and radiant electrical underfloor heating systems.
Applications
Designed for professional tilers, bathroom fitters, wetroom installers and builders working on internal floors ahead of tiling. Suitable for use over concrete subfloors, tamped or pan floated concrete, sand/cement screeds, existing smoothing underlayments, anhydrite/calcium sulphate/gypsum based screeds, plywood and tile backer board, and terrazzo/granolithic ceramic tiles. Compatible with warm water and radiant electrical underfloor heating systems (solid floors only – always consult the underfloor heating manufacturer for guidance). Not suitable for vinyl tiles or as a pre-smoothing layer prior to DPM or MVS application.
Performance & Features
UltraTile ProLevel One Deep meets classification CT-C35-F8 AR0.5 to BS EN 13813, offering a 28-day compressive strength of 35.0N/mm² and flexural strength of 8N/mm². Working time at 20°C is approximately 20–30 minutes, giving installers a practical window to mix, pour and trowel the material to a lump-free, creamy consistency before it begins to set.
Compatibility
All subfloors should be assessed for moisture in accordance with BS 8203 and primed with UltraTile ProPrimer before application – porous substrates typically need a diluted coat (3:1 with water), while dense, non-porous substrates should be primed neat. Always allow primer to dry fully before applying ProLevel One Deep.
Backed by UltraTile's 25-year guarantee and manufactured to ISO 9001, ISO 14001 and ISO 45001 quality standards, UltraTile ProLevel One Deep is a trusted choice for trade professionals who need a dependable deep fill leveller they can rely on, pour after pour.
Download the full UltraTile ProLevel One Deep Technical Datasheet (PDF)




