Sika Sikafloor 245 Deep Fill Ultra Self Levelling Compound 25kg

Sikafloor®-245 Level Deep Fill Ultra – 25 kg

One-part, thick-bed, cement-based smoothing and resurfacing compound, ideal for levelling very uneven floors and screeds in a single application—up to 50 mm thick. Once mixed to a free-flowing/trowelable consistency, it creates a durable, traffic-ready surface, ready for finishes like tiles, lino, wood block, or carpet.

Key benefits

• Deep filling up to 50 mm in one coat (up to 60 mm when mixed with aggregate).
• Extremely low shrinkage for a stable, flat surface.
• Trafficable and ready for overlay in just 4 hours under normal conditions.
• Pot life approximately 40 minutes at 20 °C.
• Suitable for both internal and external use.

Typical applications

• Levelling out uneven floors prior to laying ceramic or thermoplastic tiles, lino, wood block flooring, or carpet.
• Covers substrates like sand/cement screeds, quarry tiles, terrazzo, asphalt, or existing tiling.
• Ideal for use over or under underfloor heating systems.

Usage guidance

• Mix one 25 kg sack with approximately 4.5 L of clean water to a smooth consistency.
• Pour and spread using a steel trowel between 3 mm and 50 mm thick (up to 60 mm when filled with dry aggregate).
• Trafficable in around 4 hours; ready for coverings at the same time.
• Add dry aggregate at a 1:1 ratio (by volume) for deeper fills—adjust water to maintain consistency.

Product details

• Pack size: 25 kg bag.
• Appearance: Grey powder.
• Compressive strength: ~25 N/mm²; Flexural strength: ~6 N/mm².
• Standards: Tested to EN 13813 CT-C25-F6; reaction to fire: Class A1/A1fl.
• Shelf life: 9 months stored sealed between +5 °C and +35 °C.

Good to know

Not suitable for anhydrite (calcium sulphate) screeds or use as a final wearing surface. Ensure substrates are clean, dry, and sound before use. Prime porous surfaces with diluted PVA or SBR; mechanically key non-porous surfaces before application.