Cekol ZW-04 Levelling mortar

  • Layer thickness from 3 to 50 mm
  • For standard and heated surfaces
  • Highly durable
  • Frost and water resistant
  • Easy to use high yield mortar
Cekol ZW-04

Evening-up plaster

• CEKOL ZW-04 is a plaster intended for filling cavities and levelling wall, ceiling and floor surfaces.
• The product is also used as a material for preparing floor underlay.
• It is a frost-resistant and waterproof mortar intended for use both inside and outside buildings.
• CEKOL ZW-04 can be used with underfloor heating systems.
• Maximum grain size is 3 mm.
• CEKOL ZW-04 is a factory-produced dry mixture of cement, mineral fillers, aggregate and modifying additives.


Preparation of the substrate

Remove residues of emulsion paint and oil paint and loose sand grains with a spatula. The substrate should be clean, compact and free of grease.


Strongly absorbing substrates should be primed with a deep-penetrating primer CEKOL DL-80.

Preparation of the mortar

Prepare the mortar by pouring 1 kg of the powder into 0.16-0.18 litre of water and thoroughly mixing.


Apply the mortar to the substrate with a trowel or smooth steel float. Layer thickness: 3 ÷ 50 mm. The mortar retains its properties for approx. 2 hours. If it thickens during this time, it should be thoroughly stirred again without adding more water. Coverage: approx. 1.8 kg/m2 for 1 mm of layer thickness. Work temperature: +5 ÷ +25 C.


After initial setting of the mortar the surface should be tightly covered with film or lightly moistened with water for a period of 3 to 5 days.



Tiles can be laid after approximately 48 hours (the curing time can be shortened). Floor coverings, parquet and panels can be installed after the mortar has totally dried. Drying time: approx. 1.5 mm of layer thickness per day.

Technical data:

  • Meets requirements EN 13813 CT-C25-F5 Cement-based floor underlay, for use inside constructed features
  • Proportions of the mixture 4 l to 4,5 l of water for 25 kg of dry powder
  • The mortar retains its properties approx 2 hours
  • Drying time approx. 1.5 mm of layer thickness per day
  • Coverage approx. 1.8 kg/m²/mm of layer thickness
  • Work temperature +5 ÷ +25˚C
  • Reaction to fire A1
  • Release of corrosive substances CT
  • Compressive strength C25
  • Flexural strength F5
  • The product has a hygienic approval
  • Storage in the original container, in a dry place

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