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5510
NIVELA COMFORT 20MPa
Formerly New recipe
With fibers: Reduces the formation of cracks.
Reliable self-levelling. Also for wet areas.
- Application thickness: 2-20 mm.
- Self-levelling: For a perfectly level subfloor under floor coverings.
- Suitable for wet areas such as bathrooms.
- Suitable for underfloor heating.
- Walkable after 6-8 hours.
- Tileable after 1 day.
- 20MPa for residential construction.
Area of application
- Indoor: floor
- For humid areas
Heating and cooling area
- Floor
Processing method
- For hand and machine processing
- For levelling interior floors before laying floor coverings (tiles, floating floors, PVC, carpets, etc.).
- For levelling concrete floors.
- For using heating cables and mats for electric underfloor heating, including levelling cement screed surfaces with built-in hot water heating.
- The compound is not recommended for high load floors and floors subject to traffic loads; it is not intended as a final utility layer.
Consider this similiar product
5520
NIVELA POLYMER 20MPa
Easy levelling of floors
For perfectly flat floors before laying the covering.
- For self-levelling of perfectly flat floors.
- 20MPa for light loads up to 1t in residential, office, light operations and garages.
- Before laying parquet and other coverings. Also as finishing layer usable.
- Application layer thickness 2-20 mm, for levelling larger irregularities.
- Resistant to abrasion and point loads of office chair castors, hand trucks etc with plastic or rubber wheels.
- Suitable for floor heating.
RECOMMENDED SYSTEM PRODUCTS
Processing details
Learn more about technical details for processing this product.
Substrate requirement
The substrate must comply with the applicable standards, must be solid, free of loose particles, free of dust, paint, residues of demoulding agents and efflorescence. It must be sufficiently rough, dry and evenly absorbent. The surface shall not be frozen or water-repellent. The substrate shall be stable in volume.
Substrate preparation
Depending on substrate water absorption and climatic conditions, the following is needed: Use Cemix primer 5400 on absorbent substrates, roughen smooth substrates or use Cemix contact bridge 8040. Use Remix cement spray on the exterior of the substrate. If necessary, treat non-standard substrates with a suitable method to achieve the desired properties. Smooth unevenness of the substrate with suitable Cemix materials and allow to dry and cure. The substrate must comply with the applicable regulations, standards or recommendations of the material manufacturer.
Preparation of the mixture
Prepare the material by pouring the dry mixture into a suitable machine with the prescribed amount of water. Use potable water or water complying with EN 1008 to mix the mixture. Mix to a homogeneous mixture without lumps.
Water demand
| Quantity | Liters (Min) | Liters (Max) |
|---|---|---|
| 25 kg | 5 L | 5.5 L |
| 1 kg | 0.2 L | 0.22 L |
Mixing
Mixing time
5 min
Mixing speed in Rpm
800x/min
Ripe time
3 min
Processing instructions
After evenly spreading on the substrate, the layer is leveled, spread to the desired thickness using a fine-toothed spatula or trowel. The laid mixture is then blown off with a hedgehog roller, which also helps to level it. In the case of machine processing, the mixing is carried out, for example, with an m-tec duo-mix with accessories recommended by the manufacturer for the application of self-levelling floor compounds. The hose outlet must be equipped by a filter to catch dirt.
The screed can be used to water electric heating floor mats only under the conditions of strict compliance with the ramp-up cycles specified by the heating mat manufacturer. The covering layer of the screed must be at least three times the thickness of the heated cable. Local levelling of unevenness may be up to 15mm.
Application thickness
| Minimum layer thickness | 2 mm |
|---|---|
| Recommended layer thickness | 4 mm |
| Maximum layer thickness | 20 mm |
Consumption
Material consumption min.
1.7
Material consumption max.
-
Material consumption in measuring unit
kg/m²/mm
Yield
| Material consumption | at | unit | Yield |
|---|---|---|---|
| 25 kg | 4 | MM | 3.68 |
Working time (potlife)
30 min
Walkability after
6 h
Treatment after application
After application, the direct negative effects of sun, heat, humidity and draughts should be avoided. Protect from frost and rain. Direct heating of the surface is prohibited.
The surface is walkable in about 6-8 hours after application, full load after laying floor coverings. Laying of floor coverings can be done after the screed has dried to the required value according to ČSN 74 4505. Under normal conditions the screed requires 1 day per 1-2 mm thickness to dry to equilibrium moisture content.
Tool and cleaning instructions
Wash off tools with water immediately after finishing work. Clean dried residues mechanically.
Technical parameters
| Main binder | Grey cement |
| Flammability class | A1fl |
| Max. grain size | 0,7mm |
| Full load after | 72 h |
| Compressive strength 28 days in N/mm² | 20 N/mm² |
| Flexural strength 28 days in N/mm² | 5 N/mm² |
| Thermal conductivity λ in W/(m.K) | 1.2 |
| Dry bulk density in Kg/m³ | 1850 |
| Dry bulk density in Kg/m³ to | 2050 |
| Release of corrosive substances | CT |
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