Protects brick and engineering-brick facades, walls and walling against water uptake without altering their appearance. The water-based siloxane sealer dries colourless and does not block water-vapour diffusion, so the wall keeps breathing.
Natural stoneVC-1 is a sealer for brick and engineering brick - a sound choice for facades, walling and walls. Brick readily absorbs water, and the cement joints between the bricks absorb it more readily still.
The product lowers the water uptake of the wall and limits the ingress of rainwater and with it the salts that show as white efflorescence on the face. It forms no film: the brick keeps its colour, its texture and its vapour permeability.
This is the colourless version: a single-component siloxane product that penetrates to a depth of more than 5 mm and meets PN-EN 1504-2 tab. 3.
Stone forgives less than concrete. An acidic cleaner used on marble or travertine will etch the surface irreversibly, and excess sealer on a polish leaves a smear that can no longer be removed.
After sealing, polished stone usually stays out of use for 72 hours.
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.
Not always. Marble is soft and sensitive to acids, granite is not, so the product has to match the type of stone. Before you buy, check that marble is on the list of recommended substrates.
With cleaning products of the right pH. For the polished-stone range that is usually pH 5-9 for the invisible versions, and a wider range for the wet-look ones. You will find the range for your product in its technical data.
It helps, though not in every case. It limits the ingress of water and the compounds dissolved in it, including those that discolour stone from below. It will not stop processes inside the stone itself, or rust from fixings.
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.
It depends on how absorbent the wall is, because the product is applied to saturation - so the simplest way to work it out is to seal one square metre, measure what it took, and multiply by your area with a small margin.
After 5-6 hours. Until then, protect the freshly sealed surface from rain and from direct sun.
Yes - the product goes on across the whole face of the wall, joints included. Repair any failing or washed-out joints before sealing, though, because a sealer is not a sealant.
Apply to full saturation in one generous coat; on absorbent material, repeat the application wet-on-wet.
Write to us with the area and the type of surface - we will help you work out how much you need.
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A sealer will not bond to a dirty surface. Start by cleaning it thoroughly.
