Self-levelling and smoothing compound
- Suitable for concrete, screeds and nonabsorbent subfloors
- For straightening and levelling of substrates
- As top flooring in stockrooms, warehouses, and for industrial floors
- For interior use
- For renovation and new build
- Excellent flow properties in thin layers
- Fast setting
- Suitable for underfloor heating mats
- Thickness: 1 - 20 mm
Grey, fast-setting, polymer modified powder on the basis of aluminous cement. Applicable by trowel or pump.
Approx. 1.6 kg per m²/mm thickness.
Available in 20 kg PE lined paper bags.
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.
Tiling: 12 hours at +20°C for thickness up to 10 mm
Tanking and tiling: 24 hours at +20°C
Dense coverings: directional curing time: approx. 24 hours for layer in 10 mm thickness obtaining 85% RH.
H.C. Oersteds Vej 11-13
|Declaration of performance
|DS/EN 13813 CT-C35-F7
Alfix PlaneMix 20
|Reaction to fire||A2fl-s1||Release of corrosive
|Water permeability||NPD||Water vapour permeability||NPD|
|Compressive strength||C35||Flexural strength||F7|
|Wear resistance||NPD||Sound insulation||NPD|
|Sound absorption||NPD||Thermal resistance||NPD|
Low emission, GEV-EMICODE EC1 - test defined by the German institute Gemeinschaft Emissionskontrollierte Verlegestoffe.
+10°C - +25°C
2.1 kg/litre (mixed with water)
Approx. 145-155 mm
Approx. 50 minutes at +20°C
After 2 - 3 hours at +20°C
After 12 hours at +20°C
After 7 days at +20°C
35 - 55 N/mm²
1.5 - 2.0 N/mm² at 5 mm thickness
Min. 6 months in unopened bag
Concrete subfloors, max humidity 95% RH. Cohesive strength should be min. 1 N/mm².
Anhydrite screeds, max. 0.5% residual moisture.
Ceramic tiles, terrazzo, and timber floors.
For further information and details, please contact our Technical Services Dept.
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 4.5-5.0 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 20 onto the prepared substrate and spread with notched or straight trowel until the compound flows together into a smooth and even surface. For thicknesses exceeding 20 mm, incorporate kiln dried sand to extend coverage.
If in doubt, please contact our Technical Services Dept.
Concrete, min. thickness: 1 mm
Exposure to chair castors, min. thickness: 2 mm
Timber floors, min. thickness: 10 mm
Top flooring, min. thickness: 5 mm (dry locations).
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.
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.