• Freezeproof
  • Ecologically friendly
  • Highly plasticized
  • High adhesion to the surface
  • High strength M 350

Technical data

Thickness of layer 10-80 mm
Mixture ratio 0,15-0,16 l per kg of mixture
Adjustment time not less than 1 hours
Ready to technical passage after 24 hours
Compressive strength after 3/28 days not less than 10/35 MPa
Tensile strength after 28 days not less than 6 MPa
Adhesion to substrate not less than 0,5 MPa
Freeze-Thaw Stability not less than 50 cycles
Surface temperature from +5°С to +30°С
Exploitation temperature from -30°С to +80°С
Easy leveling screed LFS 71 is used for basic laying and leveling of rigid substrates indoors and outdoors in civil and industrial buildings for normal and heavy stress (except stress of transport on tracks), also as undercoat for self-leveling mortars. Cured screed can be used under various coatings, such as linoleum, carpet, laminate, parquet, ceramic tiles, natural stone and others. The screed ANSERGLOB LFS 71 is used for connective, separating, "floating" layers of undercoats or floor heating systems.
The surface preparation is realized according to State Standard of Ukraine (DSTU N B A.3.1-23:2013) and State Building Codes of Ukraine (SNiP 2.03.13-88 and State Building Codes of Ukraine (DBN В.2.6-162:2010). Surface must be structurally sound, clean, dry and free from dust, grease, dirt, lime, wax, oil or emulsion paints. Before applying screed fragile areas of substrate must be removed. Cement surface is cleaned up from laitance by wire brush or sandblaster. Thus, it allows to increase adhesion of smooth surfaces. Cracks in the beds must be expanded and treated by one of deep penetrating emulsions ANSERGLOB and filled with ANSERGLOB LFS 71. Before applying substrates with strong sorption must be treated by one of deeply penetrating emulsions ANSERGLOB and exposed for 4 hours. Insufficient quality of preparing work can lead to delaminating or cracking of the laid layer.
Prepared screed mortar is poured on bed and spread on the surface with feather edge, wide spatula or other tool. When laying ‘floating’ floor thickness is 40 mm as minimum. When using as separating layer, application thickness is 35 mm as minimum. When using in floor heating systems, the layer thickness must be on 30 mm higher than the upper edge of the heating pipe, the system must be filled with water until the screed is fully cured. In order to feed solution piston or screw pump can be used. All works on the preparation, spreading and smoothing of each portion of mortar should be carried out for 1 hour.
At breaks in work more than 1 hour tools and equipment must be cleaned from mortar and washed with water. Cured mortar can be removed only in mechanical way. When applying mortar and during curing to prevent cracking it is required to avoid of draught and fast drying of screed.
Depending on the curing conditions, application thickness and residual moisture of bed (not more than 4 %) further work should be done not less than after 7 days for the installation of ceramic and stone tile and 14 days for laying parquet, linoleum and carpet.

Note: Strength of bed must be not less than next layer. Application should be complied at temperature above +5°С and below +30°С. All the mentioned recommendations are effective at temperature of +20°С and air humidity of 60%. Under the other conditions crusting, stiffening and curing time may be changed.

Average consumption of the mixture is 1,8 kg per m2 at 1 mm layer thickness.
Dry mixture must be poured into container with clear water according to ratio 0,15 - 0,16 liters of water per 1 kg of mixture (3,75 – 4,0 liters of water per 1 bag of 25 kg) when at the same time manually or mechanically mixed (by the drill on low revs) to obtain the kindred and elastic mass. After exposing 5 min mortar must be mixed again and can be used. Excess quantity of water leads to reducing quality, decreases strength and can lead to delaminating that is unacceptable.

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