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Answers / Methods

Does Coffee Wood Marble need to be sealed?

On a floor, a wet room or a counter, yes: an impregnating sealer, on a schedule. It slows a spill getting into the pores and it makes the stone more stain-resistant. It does not make the stone acid-proof, and nothing does.
A close view of a wet polished marble slab showing straight dark brown veins running across a warm grey-brown base in even parallel lines
A polished face. A sealer changes how a surface takes the light, not what the stone is.

Reference photographs. They show the material and the finish; they are not photographs of goods we made, and the colour on screen is not a colour-match.

The figures, and where each one comes from

Where Sealing
A floor or a corridor Yes, and on a schedule
A wet room Yes, and more often than a dry room
A counter Yes, and the sealer has to be food-safe
A wall Watch it, and the decision is about the finish
What sealing does Slows absorption and reduces staining
What sealing does not do Stop an acid etching the surface

Why it behaves the way it does

A penetrating sealer works in the pores and an etch happens on the surface, so the two are unrelated. People seal because they want the stone to survive a kitchen, and then they wonder why the lemon juice still marked it — the answer is that sealing was never what stopped it.

What these figures are, and what they are not

The intervals below are general guidance for calcareous stone in ordinary use. The right interval for a specific floor is a question about that floor, and the sealer's own manufacturer has the answer for the product.

If you are specifying this

We have not published products against this question yet. Send us the process, thickness and quantity and we will quote it against what we can actually form, rather than against a catalogue.

Send a specification Ask for a sample

On a floor, a wet room or a counter, yes: an impregnating sealer, on a schedule. It slows a spill getting into the pores and it makes the stone more stain-resistant. It does not make the stone acid-proof, and nothing does.

The figures

Where Sealing
A floor or a corridor Yes, and on a schedule
A wet room Yes, and more often than a dry room
A counter Yes, and the sealer has to be food-safe
A wall Watch it, and the decision is about the finish
What sealing does Slows absorption and reduces staining
What sealing does not do Stop an acid etching the surface

Why

A penetrating sealer works in the pores and an etch happens on the surface, so the two are unrelated. People seal because they want the stone to survive a kitchen, and then they wonder why the lemon juice still marked it — the answer is that sealing was never what stopped it.

What these figures are, and what they are not

The intervals below are general guidance for calcareous stone in ordinary use. The right interval for a specific floor is a question about that floor, and the sealer’s own manufacturer has the answer for the product.

Where this applies on this site