Protects sandstone cladding, sills, walling and facade elements against water uptake without changing the colour or texture of the stone. A single-component, ready-to-use, water-based siloxane sealer that dries colourless.
Natural stoneHP-1 is an excellent sealer for sandstone - an exceptionally absorbent stone. Use it on sills, cladding, low walls and facade elements.
That absorbency is also sandstone's problem: water enters deeply, and with it salts that crystallise as they evaporate and break the stone apart from within. The product lowers water uptake while leaving water vapour a way out.
The colourless version - the stone keeps its own shade. A single-component siloxane product meeting PN-EN 1504-2 tab. 3, with a penetration depth above 5 mm.
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.
Consumption depends on the absorbency of the material, because the product is applied to saturation - so the surest way to work it out is to seal one square metre, see how much product it took, and multiply by your area, adding a margin.
After 5-6 hours. Until then, protect the freshly sealed surface from rain and from direct sun.
The chemistry is the same - what differs is the use each was tested for. For elements and cladding choose HP-1, for walls and facades VP-1.
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.
No reviews yet
Bought it from us? Tell us how it works on your surface. It helps others choose.
Every review is linked to an order, so only people who bought this product in our shop can write one.
A sealer will not bond to a dirty surface. Start by cleaning it thoroughly.
