StoneCare4U Sandstone Sealer Colour Boost - White

A simple test is to place a few drops of water on the surface. If the water is absorbed quickly, the stone is porous. If it beads up and sits on the surface, it is less porous or non-porous, and this sealer may not be suitable.

No, this specific product is not suitable for Kandla Grey (mid and light grey) sandstone. Please refer to the product's compatibility information for suitable stone types.

The colour enhancement is a result of the sealer penetrating the stone. The protective qualities and colour enrichment should last for several years, depending on the stone's exposure to traffic, weather, and cleaning methods. Regular cleaning with pH-neutral products will help maintain its appearance.

The coverage rate is approximately 4-6 square metres per litre, but this can vary significantly depending on the porosity and texture of the stone surface.

While the surface is dry to the touch relatively quickly, it requires a minimum of 72 hours to fully cure and achieve maximum protection. Avoid heavy foot traffic and placing furniture on the surface during this initial curing period.

It is not recommended to apply the sealer if the temperature is below 15°C or above 23°C, as this can affect the sealer's performance and curing process, potentially leading to suboptimal results or white patches.

If you notice sealer on a non-porous surface and it hasn't cured, try to wipe it off immediately with a suitable solvent recommended by the manufacturer. If it has cured, it may be difficult to remove without damaging the adjacent surface. Contact the manufacturer for specific advice.

This is often caused by moisture trapped under the sealer during the curing process or excess sealer not being removed adequately. Ensure the surface remained completely dry for 72 hours. If the residue is fresh, it may be possible to remove excess sealer if it hasn't fully cured. For cured patches, consult manufacturer guidance for potential remediation steps, which may involve specific cleaning agents or re-application after stripping.

This can happen if the sealer was applied unevenly or if excess sealer was not removed properly. Ensure consistent application with no pooling. If the issue is minor, a light re-application on the affected area might help blend the colour. For significant unevenness, it may require stripping and re-sealing the entire surface.

Check that the stone surface is porous enough and has been thoroughly cleaned and dried. Ensure the application temperature is within the recommended range (15°C-23°C). Very dense or previously sealed surfaces may not accept the sealer well.

This might indicate that the sealer has started to cure or bond to the surface. Act quickly within the 20-30 minute window. If it has dried, a cleaner recommended by the manufacturer for uncured sealer might be necessary, or gentle mechanical removal if possible without damaging the stone.