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Rapid drying self-smoothing base & renovation screed
For levelling bonded, unbonded and floating substrates:
Suitable for covering with:
* May require extended time before covering
weberfloor fibre rapid 4320 is designed for the use in domestic and commercial areas. Rapid drying technology allows our quickest overlay compared to traditional sand/ cement, concrete or anhydrite screeds. It is ideal for the renovation of existing floors and floating floor constructions.
Features and benefits:
Constraints
Finish | Smooth |
Material | Fibre-reinforced |
Uniclass | |
CAWS | M10/7 Proprietary quick drying levelling screeds M10/160 Proprietary self smoothing levelling screeds |
Levelling | Concrete, sand, cement screeds, anhydrite screeds, wooden boards, underfloor heating, insulation boards, existing tiles, bitumen. |
Application temperature | +10°C to +25°C. |
Strength | 1 N/mm². |
WaterUsed | 5 litres/ 25 kg (20%). |
CompressiveStrength | C 30. |
Flexural strength | F 7. |
Shrinkage | < 0.05% (28 days). |
Flowrate | 220–235 mm. |
Screed | Material Consumption: 1.7kg/ m²/ mm. |
Pot life | 20 min (after adding water). |
Setting time | Hardening Time Before Foot Traffic: 1-3 hours in normal conditions. Hardening Time Before Tiling: 12 hours in normal conditions. Hardening Time Before Final Covering: 16+ hours dependent on thickness and site conditions. |
Thickness range | 5–50 mm. |
Finish: | Smooth, finished with various floor coverings. |
Platform | Compatible | Version | Certified to |
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![]() | - | 1 | 2.1 |
![]() | - | 1 | 2.1 |