Product Data Sheet Show all documents
Sikafloor®-440 Level Fibre Reinforced

Sikafloor®-440 Level Fibre Reinforced

Heat-resistant, fibre reinforced self levelling compound

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. 

  • 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
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Product Data Sheet Show all documents

Usage

  • 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
 

Advantages

  • 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

Packaging

20 kg Sack

Colour

Fine grey powder

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to EN13813 CT-C25-F5-AR0.5
Product Information

Shelf Life

6 months from date of manufacture

Storage Conditions

This product must be stored in unopened bags clear of the ground in cool dry conditions. The use of this product after the end of declared storage period may increase the risk of an allergic reaction.
Technical Information

Abrasion Resistance

BCA Wear Resistance Class AR 0.5

Compressive Strength

25 N/mm2

Flexural Strength

5 N/mm2

 

Application

Application Information

Mixing Ratio

20 kg of Sikafloor®-440 Level Fibre Reinforced mixed with 4.4 litres of clean water

Layer Thickness

2 mm - 30 mm

Ambient Air Temperature

4 °C to 35 °C

Pot Life

20 minutes at 20 °C

Waiting Time / Overcoating

Will accept foot traffic in approximately 3 hours at 20 °C.

Can accept floor coverings in approximately 4-5 hours.

These setting times will be significantly extended at lower temperatures over low porosity subfloors.
Consumption

Consumption

20 kg will cover approximately 2.4 m2 at a depth of 5 mm
Application steps

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 L 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+ diluted 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 SikaBond® 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.

 

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