PlaneMix 50

PlaneMix 50

Self-levelling compound

  • Suitable for concrete, existing tiles, and timber floors
  • For straightening and levelling of substrates
  • As top flooring in stockrooms, warehouses, and for industrial floors
  • For interior use in dry and wet locations
  • Ideal for subfloor repairs
  • Fast setting
  • Suitable for underfloor heating
  • Thickness: 2 - 50 mm

Product calculator

Product facts


Grey, fast-setting, polymer modified powder on the basis of aluminous cement. Applicable by trowel or pump.




Approx. 1.7 kg per m²/mm thickness

For straightening/screeding add 30 litres Leca pearls, size 2-4 mm, per 20 kg powder.


Available in 20 kg PE lined paper bags.



Expected Result



Surface preparation

Fixing dowels




Prior to further installation, make sure that the relative humidity on location corresponds to the floor covering in question. Curing rate is influenced by temperature, humidity, ventilation, as well as sub-floor construction.
Tanking: For wet room use, always apply waterproof sealing membrane onto levelling compound.
Tiling: 24 hours at +20°C
Dense coverings: directional curing time is 1 – 7 days.

Prior to coating, the relative humidity must be known and matched to the current coating type. Drying depends,
among other things, of temperature, humidity and ventilation as well as the suction of the underlying structure.

Tiling: After 24 hours at + 20ºC / 50% RF.

Alfix Wet room system: After 24 hours at + 20ºC / 50% RF for layer thicknesses up to 35 mm and after 48 hours at + 20ºC / 50% RF for layer thicknesses of 35-50 mm.

Dense coatings such as vinyl or the like can be done after 1-3 days according to the following guidelines measured at + 20ºC / 50% RF:
After 24 hours at layer thicknesses between 1-32 mm.
After 48 hours at layer thicknesses up to 40 mm After 72 hours at layer thicknesses up to 50 mm
Recommended moisture content: Max 85% RF.


Alfix A/S H.C. Oersteds Vej 11-13 DK-6000 Kolding

Declaration of performance
No. 23

DS/EN 13813 CT-C40-F10-AR0,5

Alfix PlaneMix 50
Cementitious screed
material for use interally
in buildings

Reaction to fire A2fl-s1 Release of corrosive
Water permeability NPD Water vapour permeability NPD
Compressive strength C40 Flexural strength F10
Wear resistance AR0,5 Sound insulation NPD
Sound absorption NPD Thermal resistance NPD
Chemical resistance NPD    

Tile fixing

Tile fixing


Low emission, GEV-EMICODE EC1 - test defined by the German institute Gemeinschaft Emissionskontrollierte Verlegestoffe.


Technical data

Working temperature

+10°C - +25°C


2.1 kg/litre (mixed with water)

Flow EN 12706

Approx. 125-135 mm

Working time

Approx. 20-30 minutes at +20°C

Foot traffic

After 3 hours at +20°C

Floor covering

After 24 hours at +20°C

Full strength

After 7 days at +20°C

Compression strength

40 - 50 N/mm²

Tensile adhesion strength concrete

1.5 - 2.0 N/mm² at 5 mm thickness

Shelf life

Min. 6 months in unopened bag

How to use


Concrete subfloors, max humidity 95% RH. Cohesive strength should be min.

1 N/mm².

Ceramic tiles, terrazzo, and timber floors.

For further information and details, please contact our Technical Services Dept.

Surface preparation

The surface should be dimensionally stable, sound, clean and free from dust and laitance. Residues from grease or soap can be removed with Alfix Deep Cleaner. To remove laitance or roughen smooth surfaces, use mechanical preparation, such as sanding or grinding, and vacuum subsequently.
For absorbent surfaces, such as concrete, dilute Alfix PlaneMixPrimer with clean water in the ratio 1:3.
For smooth or dense substrates, wash/brush the surface using a mixture of Alfix PlaneMixPrimer and levelling powder in the ratio 1:2.
Ensure a room temperature of min. +10°C while working. Allow primer to dry before commencing further treatment. Application of smoothing compound should be made within 24 hours after priming.
Use self-adhesive foam tape to retain at doors, around floor drains, etc. If possible prevent compound from obtaining contact to walls. For thicknesses exceeding 5 mm, always apply self-adhesive foam tape for walls.
Should levelling imply several layers, priming before each new application is required.

How to use

Add 3.0-3.6 litres of clean cold water per 20 kg bag of powder. Pour water into a clean container and sprinkle in powder while stirring continuously. If possible, use large mixing container or drum for more bags at a time and mix until a lump-free, easy-flowing mix is obtained. Mixing time is approx. 2 minutes using rotary drill paddle.
Pour or pump Alfix PlaneMix 50 onto the prepared substrate and spread with notched or straight trowel until the compound flows together into a smooth and even surface.
Concrete, min. thickness: 2 mm
Timber floors, min. thickness: 10 mm
Top flooring, min. thickness: 5 mm (dry locations).
Top flooring, epoxy paint min. thickness: 5 mm.

Additional water should not be added to levelling compound already starting to set.
Note that the temperature of mixing water will influence working time/pot life.
Over dosage of water will reduce strength and may produce laitance. Protect from draughts, direct sunlight,and heat.
Close broken packaging carefully after use and use the rest within the shortest possible time.

Slope building/gradient levelling: reduce amount of mixing water to 3 litres per 20 kg powder.

Straightening/screeding: With addition of Leca pearls Ø 2–4 mm a screeding mortar with good workability suitable for thicknesses 3 – 15 cm is obtained.

For further information and details, please contact our Technical Services Dept.


Tools and tiles should be cleaned with water before the compound sets. Cement-based products harden when mixed with water, hence do not pour surplus PlaneMix into the drain system.

January 2021

Happy New Year! Team Alfix is back from Christmas holidays and ready to serve our good Scandinavian customers.

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