A water-based siloxane sealer for split-face blocks, walling and cladding. The manufacturer states 5-11 m² per litre, depending on the type of material and how absorbent it is.
Surface
Concrete and floors
The surface the manufacturer intends this preparation for.
VBe-1 is intended for split-face concrete blocks - fence blocks, low walls, cladding. That is an exceptionally absorbent material with a developed, irregular surface.
It is therefore the only product in this range with a stated coverage: 5-11 m² per litre, depending on the type of material and how absorbent it is. The spread is wide and not accidental - a split-face block can drink twice what a smooth one does.
The product is colourless, water-based and vapour-permeable. Application temperature +5 to +30 °C.
Concrete accepts a sealer only when it is dry, clean and seasoned. A fresh slab is still giving off mix water and will push any coating off with it.
A new floor and fresh precast units have to season. Manufacturers give that period on the data sheet; for precast concrete it is usually around 28 days.
Before sealing the whole area, test on a patch hidden by a planter or in a corner of the patio. The same product can read differently on two batches of the same material, and on a surface with old coating left on it, it will not bond at all.
Products that form a polymer layer bind the loose particles on the surface, and manufacturers describe them as dust-free. That is not a substitute for a hardener where the concrete itself is dusting because it was poorly floated - the problem is then in the slab, not on it.
Yes, if the technical data lists indoor use. With solvent-based products you have to ventilate during application and for the period the manufacturer states.
Remove them before sealing, with an oil stain remover. A sealer applied over a stain seals it in and fixes it - oil will not evaporate through a sealed layer.
It limits the ingress of water and the salts dissolved in it. How far that goes depends on the product, and we quote it from the manufacturer's data sheet rather than generalising.
Composition and finish. The -1 versions are single-component, based on siloxanes alone, and dry colourless. The -2 versions are multi-component - siloxanes with modified silanes - and give a lasting wet-look finish. Both meet PN-EN 1504-2 tab. 3 and both leave the pores open.
The manufacturer states 5-6 hours. During that time the freshly sealed surface also has to be kept out of direct sun.
Count both sides of the wall and work to the lower end of the coverage - 5 m²/l. A split-face block has far more surface than its outline suggests, so an area calculated from the fence dimensions is an underestimate.
The technical sheet and safety data sheet will be available after approval.
Enter the area and how absorbent the substrate is. We work out the litres and the packs.
Depending on the type of substrate and how absorbent it is.
Example for 45 m²
5.6L
Enter your own area to calculate for your job.
An impregnation will not bond to a surface with anything left on it. This is the most common cause of complaints.
Go directly to the right category. We do not imply compatibility across materials.