Will sealer change the colour of my stone?

An impregnating sealer is designed not to. Colour-enhancing products will deepen the tone. Always test on an offcut first.

Protection & Care

Seal it once. Enjoy it for years.

Indian sandstone is naturally porous — especially once it is sawn. An impregnating sealer keeps water, oil and organic staining out of the pore structure without changing how the stone looks.

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Why Seal

What sealing actually does

A sealer is not a coating. It sinks into the stone and lines the pores, so liquid beads and lifts instead of soaking in.

The Problem

Sawn stone is thirsty

Cutting a block opens the pore structure. Freshly sawn sandstone absorbs water, oil and tannin far faster than riven stone with its natural skin intact.

The Risk

Stains that will not lift

Cooking oil, leaf tannin, rust from garden furniture and tyre marks all penetrate unsealed stone. Once in the pore, they are very difficult to remove.

The Risk

Salting and picture framing

Moisture moving through unsealed paving carries mineral salts to the surface. Sealing all six sides before laying is the standard defence.

The Method

Six sides, before laying

For sawn paving we strongly recommend sealing all six faces before installation, not just the top after.

Practical

Coverage and re-coat

Coverage varies with stone porosity and finish. Test on an offcut first and record how much you used per square metre.

Warning

Never use acid cleaners

Acidic cleaners etch limestone and Kota stone permanently, and strip sealer from sandstone. Use a pH-neutral stone cleaner.

To complete: send me your actual sealer product name, pack sizes, coverage rate per litre, and whether it is solvent or water based. I will replace the generic guidance with your product's real specification.

Which stones need sealing?

Sawn and honed sandstone benefits most, because cutting opens the pores. Riven sandstone, limestone and Kota stone all benefit in high-traffic or food-preparation areas. Basalt and granite are far denser and often need no sealer at all.

Should I seal before or after laying?

Before, on all six sides, for sawn paving. This is the single most effective step against efflorescence and picture framing. A top-up coat after laying and grouting finishes the job.

How often does it need redoing?

It depends on traffic, exposure and the sealer used. A simple field test: splash water on the surface. If it beads, the sealer is working. If it darkens the stone, it is time to re-coat.

Will it change the colour of my stone?

An impregnating sealer is designed not to. Some products are sold specifically as colour-enhancing and will deepen the tone. Always test on an offcut before committing to a full patio.

Seal it once. Enjoy it for years.

What sealing actually does

Need sealer shippedwith your stone?

Need sealer shipped
with your stone?