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Do you have any questions?

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[CX International] Flyout


Customer service

Technical support


Codex near you

Fine levelling mortar

FM 344

codex FM 344 is a low-slump, fine-grained levelling mortar with light-weight fillers for layer thicknesses from 1.5 mm to 30 mm. The lightweight plaster is very low-slump and is therefore ideal for use on walls.

Data sheet

Consumption calculator


  • for producing flat wall surfaces
  • for levelling, shaping and smoothing
  • for producing slopes in areas of drains and gutters
  • in damp and wet areas
  • on balconies and terraces
  • under ceramic tiles and natural stone floor coverings
  • for floor and wall surfaces
  • for heated substrates
  • on calcium sulphate and cementitious screeds, concrete
  • on old surfaces with firmly adhering, waterproof adhesive residues
  • as fixing mortar for tile support elements (coated rigid foam panels).
  • on old surfaces, such as tiles, slabs and terrazzo
  • for domestic, industrial and commercial areas
  • on masonry, cement and lime cement plaster


  • thickness range from 1.5 mm to 30 mm
  • very good low-slump properties for processing on walls
  • quick-setting
  • high coverage
  • low-tension
  • quickly ready for covering from 2 hours
  • universal use
  • waterproof and frost-resistant
  • very smooth and easy to apply
  • low chromate content according to EU Regulation 1907/2006 (REACH)
  • highest quality level 4 according to DGNB criterion ENV 1.2 Risks for the local environment
  • EMICODE EC1 PLUS/very low-emission
  • for healthy constructions

The low-slump and fine codex FM 344 levelling mortar is ideal for levelling unevenness of up to 3 cm on walls.

Pack type

paper bag

Pack size

25 kg

Shelf life

12 months



Minimum working temperature

+ 5 °C to + 25 °C

Ideal working temperatures

+ 10 °C to + 25 °C

Water quantity required

0.2 - 0.26 litres/ kg
5 - 6.5 litres/ 25 kg

Working Time/ Pot Life

approx. 30 minutes*

Set to foot traffic

after approx. 1.5 hours*

Ready for covering

with tiles: after approx. 2 h
with natural stone: after approx. 24 h

Final strength

after approx. 28 days*


approx. 1.3 kg/m²/mm layer thickness


*At 23 °C and 50% relative humidity.

Item no. Packsize Shipping unit
162017 25 kg
42 bags

Products and accessories

Basket spiral stirrer

The basket spiral stirrer is a very stable stirring attachment for effective mixing of thin and medium bed mortars.

Mixing bucket

The codex mixing bucket is a very sturdy plastic bucket with handles for mixing all codex powder and epoxy products.

Power X 1000

The Power X 1000 mixer is a powerful 1010 Watt mixer for mixing adhesive mortar and levelling compounds. The Wolff Power X 1000 includes a type KR 120 stirrer.

Water bucket

The codex water bucket is a transparent plastic bucket with an imprinted litre scale for measuring the correct amount of water for codex powder products.