Sikafloor-245 Level Deep Fill Ultra is a 1-part, thick bed, cement-based smoothing and resurfacing com- pound for levelling out very uneven floors and screeds up to a depth of 50mm 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 flow ing/trowelable mix.

• Levelling out very uneven floors prior to laying ceramic and thermoplastic tiles, lino, wood block flooring or carpet
• For covering Sand/cement screeds, Quarry tiles and terrazzo
• For covering existing, asphalt and tiling
• Suitable for underfloor heating applications beneath heating cables/pipes or on top of heated screeds
• Suitable for internal and external use
• Tested to EN 13813 CT-C25-F6

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• Features & Benefits
• Product Data
• Application Information
• Application Instructions
• Limitations

Features & Benefits

• Levelling out very uneven floors prior to laying ceramic and thermoplastic tiles, lino, wood block flooring or carpet
• For covering Sand/cement screeds, Quarry tiles and terrazzo
• For covering existing, asphalt and tiling
• Suitable for underfloor heating applications beneath heating cables/pipes or on top of heated screeds
• Suitable for internal and external use
• Deep filling up to 50mm (60mm filled) in one application
• Extremely low shrinkage
• Trafficable in 4 hours
• Can be overlaid after only 4 hours
• Pot life 40 mins
• Internal and external use
• Tested to EN 13813 CT-C25-F6

Product Data

Application Information

Application Instructions

Substrate Quality/Pre-Treatment

Substrate

• Concrete/screed should be at least 28 days old
• The surface must be dry, clean, structurally sound and possess an effective damp proof membrane. The surface should be free from residual adhesives, damp proof membranes, oil, grease, wax, loose flaky paint, dust, laitance etc. that could reduce adhesion
• Switch off underfloor heating 24 hours before, and until 24 hours after, application

Priming

NORMAL ABSORBENT CONCRETE/SCREED

These substrates do not normally require priming. Damp down floor with clean water without leaving puddles and allow to surface dry. If water is absorbed immediately into substrate, treat as porous surface.

POROUS CONCRETE/SCREED

• Seal surface with SikaBond PVA+ (1 part PVA to 4 parts clean water) ensuring surface is well coated, then allow to dry.
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• Replace SikaBond PVA+ with SikaBond SBR+ when using externally.
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• For highly porous substrates it may be necessary to apply more than one coat to prevent pinholes and cracking/debonding of Sikafloor 245 Level Deep Fill Ultra

NON PORUS/DENSE SUBSTRATES

(Quarry/Ceramic tiles, terrazzo and smooth concrete etc)

• Mechanically roughen surfaces by grinding or scarify- ing to provide a mechanical key.
• Alternatively, apply a bonding coat of undiluted Sika- Bond PVA+ and allow to become tacky before ap- plying levelling compound.
• Replace SikaBond PVA+ with SikaBond SBR+ when using externally.

Mixing

Unfilled (3mm to 50mm thick)

Mix Sikafloor 245 Level Deep Fill Ultra with clean water only.

• Slowly add 25kg powder to 4.5L water. Mix in a suitable clean container using a mechanical mixer with a spiral mixing paddle at slow speed until fully mixed and a smooth consistency achieved.
• If the product starts to stiffen or set, DO NOT try to remix or add extra water.

Filled (10 to 60mm thick)

• Add 1 part of clean, dry aggregate to 1 part Sikafloor 245 Level Deep Fill Ultra. The sand should be added after mixing powder with water. It is advisable to reduce the amount of mixing water before adding sand, then top up with water to achieve the correct consistency.
• NOTE: Flow characteristics will be affected by addition of the sand.
• If the product starts to stiffen or set, DO NOT try to remix or add extra water.

Application

• Sikafloor-245 Level Deep Fill Ultra can be applied from a maximum thickness of 50mm (60mm when filled) down to 3mm.
• Pour the mixed product onto the floor and spread evenly with a steel trowel to form a thin, tight scrape coat within working time.
• Immediately add further quantities of mixed product to give the desired thickness.
• Trowel marks should flow out of the product to leave a smooth finish (if not, trowel again when the surface is still damp but firm to the touch).
• If required use a spiked roller, within working time, on unfilled product to provide a more uniform surface appearance.

Cleaning Of Tools

Clean tools in water after use. Wash hands immediately after using this product.

Limitations

• Not suitable for anhydrite screeds
• Always check substrate conditions comply with manufacturers covering prior to laying.