Sikafloor-440 Level Fibre Reinforced is a fibre and polymer reinforced, flexible, high strength cement based levelling compound, designed specifically for use with underfloor heating and for application over wooden floors. Once mixed with water, Sikafloor-440 Level Fibre Reinforced produces a smooth self-levelling compound which dries to a tough flexible finish which may then be overlaid with most common floor coverings or left as a final wearing surface.

• Embedment of underfloor heating
• As a final wearing surface
• Suitable for levelling/smoothing uneven floors
• Suitable for covering existing concrete, sand/cement screeds, brick, stone, unglazed ceramic tiles, plastic sheet DPC, epoxy membranes and wooden floors
• Internal and external use
• Conforms to EN13813 CT-F25-F5-AR0.5

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

Features & Benefits

• Rapid setting and may be walked on in 3 hours
• Can be overlaid with ceramic tiles after only 4-5 hours at normal temperatures
• Strong enough to accept light vehicular traffic
• Can be overlaid with a suitable covering or used as a final wearing surface
• Designed for the embedment of underfloor heating elements

Product Data

Application Information

Application Instructions

Floors to be treated must be free from grease, dust and loose particles. Substrates must be porous. Always prepare floors by dampening with water then priming with SikaBond PVA+ or SikaBond SBR+ diluted 1 part PVA/SBR to 3 parts water to give a sound, slightly damp surface. Deep depressions and holes should be filled with a suitable repair mortar and allowed to dry.

20 kg of Sikafloor-440 Level Fibre Reinforced will require 4.2-4.4 litres of water. DO NOT USE EXCESS WATER. Always add the powder to water. This should be carried out by stepwise addition whilst stirring until a free flowing creamy compound is produced. Pour the mixture out into the prepared floor and allow it to find its own level. Trowel down lightly to achieve an overall thickness not exceeding 30 mm. Minimum thicknesses for a wooden substrate is 10 mm.

Sand/Cement Render

Allow at least four weeks drying before application. Dampen floors and prime with SikaBond PVA+ di- luted 1:3 with water. Mix with water as detailed above. For surfaces to be subjected to heavy foot traffic, use SikaBond SBR+ diluted 1:1 with water rather than just water when mixing the powder.

Timber Floors

Floors must be securely screwed down at 300 mm centres. Apply SikaBond SBR+ to the floor at a 1:1 dilution and apply to subfloor whilst the bonding coat is still tacky.

Existing Vinyl Tiles

Ensure tiles are clean and sound. Prime with Sika- Bond SBR+ diluted 1:1 with water and apply floor level compound mixed with SikaBond SBR+ diluted 1:1 with water over tiles whilst primer coat is still tacky. Allow 24 hours before applying final covering.

Limitations

• Always mix with clean fresh water and always prime floors as directed.
• Always apply this product whilst primer coat is still damp.
• Never exceed the quantity of water stated. This will dramatically reduce strength and cause cracking.
• Do not mix more compound than can be laid in 20 minutes and never try to reconstitute once the product has set.
• On substrates where underfloor heating is in place, switch off the heating for 24 hours before, and until 24 hours after, application.
• Do not use this product below 4 °C.
• In areas where movement is anticipated, always use SikaBond SBR+ diluted 1:1 with water rather than water. NO OTHER MANUFACTURER'S PRODUCT MAY BE USED.
• To avoid cracking/crazing, existing concrete screeds/asphalt/bitumen/bituminous coatings must be a minimum of 4 weeks old before overlaying with this product.
• As the manufacturer cannot know all the uses their products may be put to, it is the user’s responsibility to determine suitability for use. If in doubt, contact our Technical Department on 0113 2455450 (option 2) or send a message to [email protected].