Installation
Mix the content of the bag (25 kg) with approx. 3 litres clean water to a pourable consistency that is free of lumps. For this purpose, of the water volume and mix for approx. 30 seconds, using a mixing paddle. Then add the remainder of the water and mix for another 30 seconds. Allow the screed mixture to rest for about 2 minutes and then briefly stir it again.
Schlüter®-BEKOTEC-SLS may be prepared and placed using suitable mixing and pumping equipment for self-leveling screeds. Whenever works are interrupted, thoroughly clean mixers, pumps and hoses immediately.
For control purposes, the proper consistency of the screed should be checked with the Schlüter®-BEKOTEC-SLS Slump test template and ring, ensuring ratio of water to screed is observed and achieves 18.5 - 19.5 cm (Ø 18 - Ø 20).
Once mixed, the Schlüter®-BEKOTEC-SLS screed can be installed within approx. 60 - 90 minutes. The curing process is accelerated by high temperatures and slowed down by low temperatures. Only mix the volume of material that can be installed during the working time in the proper consistency. Install the screed in a single layer in the corresponding layer thickness, making sure the material is evenly distributed. Then use a suitable paddle, spiked roller, hard broom or similar for optimal levelling and to remove air pockets from the screed material.
Protect freshly installed screed areas from overly quick drying (draft air, high temperatures, direct sunlight etc.). Do not install the material if the air and substrate temperatures are below +5 °C or above +35 °C. The indicated curing times refer to +20 ºC/65% relative humidity.
Where the surface covering is not being applied immediately, the screed surface should be protected against mechanical damage during the building construction process. Plywood sheets/boards may need to be considered where heavy trafficking is likely or where access equipment is being used.