EWI-260 Levelling Mortar Our EWI-260 levelling mortar is used on walls to produce a smooth surface or a scratch coat on which a basecoat or EWI system can be applied. The Levelling Mortar can be used to fill and repair holes and other imperfections up to a maximum thickness of 50mm, and the mortar can be applied on various different walls and substrates, including concrete as well as different types of block or brickwork. Preparation Substrates must have sufficient load-bearing capacity, must be stable and free of contamination which might affect the adhesion properties of the mortar e.g. dust, oil, moss, loose and peeling paint or plaster coats. Remove all loose or peeling plaster coats. The wall surface, plastered or not, should be cleaned with a wire brush as necessary then rinsed with water and allowed to dry. Highly absorptive and dusty substrates should be primed with EWI-301 Water Based Primer. Slowly add the Levelling Mortar dry mixture to a suitable container with 4 litres of clean cool water. Once the Levelling Mortar has been added to the water, mix using a paddle mix to achieve a uniform, lump-free consistency. Set aside the levelling mortar for 5 minutes and then mix again thoroughly before applying to the substrate. Application Apply EWI-260 Levelling Mortar to the substrate with a trowel up to a maximum thickness of 50mm. Smooth out the layer to prepare a level surface ready for further works. EWI-260 needs to be left for a minimum of 48 hours before any more works are carried out. Application Conditions Substrate primer: EWI- 301 or EWI-310 Application temperature (air, substrate, materials): from 5°C to 25°C Water mix proportions: approx. 4.0 litres of water per 25 kg of dry mix Time of usability after mixing with water: approx. 1 hour (temp. 20°C) Quantity to be used: approx. 1.8 kg/m2 per 1mm of layer thickness (dry mix) Clean-up Do not dispose of EWI-260 Levelling Mortar along with household rubbish. Ensure that packaging is clean and empty before disposal. Left-over product should be not be allowed to reach sewage or watercourse systems. Storage Conditions Comes in powder form in a 25kg paper bag. Store in a cool, dry place. Avoid ingress of water. Shelf life: up to 12 months from the date of manufacture.
