2141
RENOVATION BASE RENDER
Formerly Name change (available during the year). Previous product 2741.
Our most effective choice.
Highest porosity. Best results in the system.
- High salt storage capacity: Porosity >50%.
- Removes moisture, highly vapour permeable, capillary active (absorbent).
- For leveling substrates, even with larger irregularities. Application thickness up to 40 mm.
- High resistance to salts and sulphates.
Area of application
- Outdoors: wall + ceiling
- Indoor: wall + ceiling
- Meets WTA requirements
- Vapour permeable
- For plinth
Processing method
- For hand and machine processing
- For levelling the substrate during the renovation of damp masonry.
- For highly salted and damp masonry (construction).
- For levelling high unevenness in the renovation of damp masonry.
Price list
Code
Packaging
Code
BC4 014 25 12 02VN
Packaging
25 kg
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 substances and efflorescence. It must be sufficiently rough, dry and evenly absorbent. The surface shall not be frozen or water-repellent. The substrate must be stable in volume.
Substrate preparation
Depending on the absorbency of the substrate and the climatic conditions, it needs to be moistened. Coat the substrate with Cemix 2140 remediation underlay. If necessary, treat non-standard substrates with a suitable method to achieve the desired properties. The substrate must comply with applicable regulations, standards or material manufacturer's recommendations.
Preparation of the mixture
Prepare the material by pouring the dry mixture into the prescribed amount of water and mixing it. Use potable water or water complying with EN 1008 to mix the mixture. Mix using a slow speed propeller mixer. Mix to a homogeneous, lump-free mixture and leave to rest. Then mix again briefly. Use suitable machinery when processing by machine.
Water demand
| Quantity | Liters (Min) | Liters (Max) |
|---|---|---|
| 1 kg | 0.22 | 0.28 |
| 25 kg | 5.50 | 7.00 |
Mixing
Processing instructions
Apply the plaster to the surface with a trowel or other suitable tool. Then roughly flatten the surface with a squeegee to the required level. Then remove the plaster surface. The minimum curing time for the base plaster is 14 days. The plaster forms a base and levelling layer for the Cemix remedial plaster. Under no circumstances must the plaster be left untreated for long periods of time (especially over the winter period).
Application thickness
| Minimum layer thickness | 10 mm |
|---|---|
| Recommended layer thickness | 15 mm |
| Maximum layer thickness | 40 mm |
Consumption
Consumption renders
| Structure | Consumption in Kg per m² |
|---|---|
| Sanační podkladní omítka v tl. 15 mm | 16,5 |
Yield
| Material consumption | at | unit | Yield |
|---|---|---|---|
| 25 kg | 15 | mm | 1,52 m² |
Working time (potlife)
150 min
Treatment after application
Non-absorbent materials prolong the maturation period.
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.
Tool and cleaning instructions
Wash off tools with water immediately after finishing work. Clean dried residues mechanically.
Technical parameters
| Main binder | Grey cement |
| Made of material | Mineral filler, cement, lime hydrate and special additives to improve processing and performance properties. |
| Flammability class | A1 |
| Max. grain size | 1,2mm |
| Adhesion after dry storage in ≥N/mm²(ETAG004) | 0.2 |
| Thermal conductivity λ in W/(m.K) | 0.36 |
| Water vapour diffusion resistance factor µ | 12 |
| Dry bulk density in Kg/m³ | 1100 |
| Dry bulk density in Kg/m³ to | 1400 |
| Wet density in Kg/m³ from | 1250 |
| Wet density in Kg/m³ to | 1500 |
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- Email: info@cemix.cz