A water-based siloxane sealer for brick and engineering brick - facades, walling and walls. It lowers the water uptake of the wall without altering its appearance or its vapour diffusion.
Surface
Natural stone
The surface the manufacturer intends this preparation for.
VC-1 is a sealer for brick and engineering brick - facades, walling, walls. Brick is an absorbent material, and the cement joint between it is more absorbent 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.
The colourless version. A single-component siloxane product with a penetration depth above 5 mm, meeting 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, manufacturers require the surface to stay out of use, usually for 72 hours. The exact figure is under "Technical data".
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.
Chemistry and finish. The -1 versions are single-component, siloxane-based and dry colourless. The -2 versions also contain modified silanes and deepen the colour for a wet-stone effect. Protection against water is the job of the product in both cases; what separates them is the finish.
Do not assume so. Marble is soft and sensitive to acids, granite is not - the manufacturer states the stone in the product's intended use, and our categories follow that. Every product lists its recommended substrates in the technical data.
Manufacturers of the polished-stone range state a permitted pH range for cleaning products - usually pH 5-9 for the invisible versions and wider for the wet-look ones. The figure for each product is under "Technical data".
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.
The manufacturer of this range publishes no coverage in square metres per litre, because the product is applied to saturation and the absorbency of the material decides consumption entirely. The practical method: seal one square metre, measure what it took, and multiply by your area with some margin.
The manufacturer states 5-6 hours. During that time the freshly sealed surface also has to be kept out of direct sun.
The product is applied across the whole face of the wall, joints included. A joint that is failing or washed out has to be made good before sealing, though - a sealer is not a sealant.
The technical sheet and safety data sheet will be available after approval.
This product has no stated coverage yet, so we cannot work out the requirement.
The manufacturer publishes no coverage figure for this range. The sealer is applied to saturation in one heavier coat, repeated wet-on-wet on absorbent material.
The calculator starts once the manufacturer states the coverage.
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.