SMET LiteFlo® Lightweight Flowing Floor Screed
Our unique German-made, factory produced, pumpable, high-quality LiteFlo® Alpha Hemihydrate screed based on calcium sulphate.
LiteFlo® Lightweight Flowing Screed is designed for application at thicknesses of between 20 and 90 mm and is particularly suitable for application over timber suspended floors and in high-rise buildings and apartment blocks. LiteFlo® complies with EN 13813: 2002. and is CE-marked.
LiteFlo® is suitable for floors in homes, offices, public buildings and places exposed to similar loads. LiteFlo® may be applied as a levelling screed directly onto a load bearing floor, unbonded on a separating barrier (polyethene), as a floating floor and can be used in conjunction with underfloor heating or cavity floors. However, when using LiteFlo® in combination with underfloor heating, it should be noted that LiteFlo® has a low thermal conductivity.
LiteFlo® should be covered with a floor finish such as tiles, linoleum, parquet, cork or carpet. If a cement based adhesive or smoothing compound is required the surface of the screed must first be sealed, using an appropriate acrylic primer/sealer.
Benefits of SMET LiteFlo® Lightweight Flowing Floor Screed
Technical Details for SMET LiteFlo® Lightweight Flowing Floor Screed
|Screed Specification EN 13813: 2002|
Over Underfloor heating Pipes: 25mm (BS 8204-7)
|Use (External Use)||No|
|Use (Internal Use)||Yes|
|Compressive Strength (28 days)||≥ 20.0 N/mm²|
|Flexural Strength (28 days)||≥ 4.0 N/mm²|
|Tensile Adhesion||> 1.5 N/mm²|
|Flow Rate||240 – 260mm (slump flow – Hägermann cone)|
|Hardening Time (light foot traffic)||after approx.12 hours, can be partially loaded after approx. 7 days|
|Hardening Time (final covering)||Final Covering: 2 – 6 weeks dependent on thickness and drying conditions|
|Recommend water content||9 – 10 L water per 27kg bag|
|Working Life||45 – 60 minutes depending on ambient conditions|
|Reaction To Fire||A1 Non-Combustible|
|Thermal Conductivity (tabular value)||λR = 0.40 W/mK|
|Fresh (Wet) Density||1.5 kg/l|
|Hardened Dry Density||1.3 kg/m³|
|pH Value||> 7.0|
SMET LiteFlo® is supplied to site in convenient 27 kg pre-mixed bags or in bulk site silos.
Check out a short video on-site at the Tower in London 2015 – the mixing set up and equipment used: