Weber.cem Fairing Coat
Pre-blended, single component, polymer modified, cementitious levelling mortar.
Product Details:
Pre-blended, single-component, polymer-modified, cementitious mortar needing only mixing with water to produce a high quality surface levelling mortar and pore filler for most concrete surfaces.
Weber.cem fairing coat can be used for:
- Levelling new and old concrete surfaces, infilling surface imperfections
- Making good concrete blow holes, filling small holes
- Making good frost damaged and scoured concrete surfaces
- Levelling of patched concrete repairs
Constraints:
Weber.cem fairing coat is not intended as a final finish; normally, an anti-carbonation coating is subsequently applied. Do not use solvent or silane-based coatings.
- Dual action - can be used as a pore filler and a levelling mortar
- Easy to apply: does not slump or slip
- Easy to spread to provide a smooth and level surface
- Good adhesion to prepared concrete
- Compatible with typical concretes
- Good carbonation resistance: contributes to the properties of the Mulsifix Concrete Repair System
- Allows water vapour to escape - does not trap water vapour – does not blister
- Agrément approved as part of the weber.cem Concrete Repair System
| Mixed density | 1900 kg/m3 |
| Working time | > 45 mins at 20°C |
| Bond to concrete | 1.3 N/mm2 at 28 days |
| Compressive strength | 19 N/mm2 at 7 days 23 N/mm2 at 28 days |
| Flexural strength | 4.5 N/mm2 at 7 days 5.0 N/mm2 at 28 days |
| Tensile strength | 2.5 N/mm2 at 7 days 3.0 N/mm2 at 28 days |
| Static Modulus of Elasticity | 19 kN/mm2 |
| ISAT (BS1881-5) | 0.017 ml/m2/sec at 10 min |
| (Control concrete: 0.26 ml/m2/sec) | 0.008 ml/m2/sec at 30 min 0.005 ml/m2/sec at 60 min |
| Bond of weber.cote smooth | > 1.3 N/mm2 to weber.cem fairing coat |
| Bond of weber.cote EC | > 1.0 N/mm2 to weber.cem fairing coat |
| Freeze-thaw resistance | No degradation or loss of bond (cycled –20°C and +20°C: 25 times) |
| Thermal resistance | No degradation or loss of bond (cycled +20°C and +60°C: 25 times) |
| Coefficient of linear thermal expansion | 10.5 x 10–6 per °C at 28 days |
| Water Vapour Transmission Rate | 49 g m–2 day–1 |
| Equivalent air layer thickness | 0.4 metres at 2 mm layer thickness |
| (Recommended criterion for water vapour release is maximum of 4 metres) | |
| Carbon Dioxide Transmission Rate | 0.8 g m–2 day–1 |
| Equivalent air layer thickness | 49 metres at 2 mm layer thickness |
