Example of RR Stone Slate

How to seal stone floors

How to seal stone floors

We all know that natural stone is beautiful and durable, but it does require a little extra care than some other products. The best way to keep your stone in great condition is to make sure it is sealed correctly, to help prevent staining.  Over time your tiles will need resealing – about every 5 years – and you may choose to do this task yourself. We have put together this guide for you to help you through the process. To start with, we always recommend that your stone floor is laid by a professional tiler. Ensuring that the product is laid and sealed correctly in the first place will make it easier to keep your floor looking in tip-top condition.

Lonsdale Black Cleft Slate
Lonsdale Black Cleft Slate
Work by SIBA Contracts. Photgraphy by WittWoo Photo.

How do I know if my stone needs sealing?

A simple way to check if your stone needs sealing is to do a test with water:

Place a few drops of water on the surface of your stone and wipe, if it leaves a darker mark then your product will need sealing. If the product repels the water and creates water droplets (like you would see if you put water in a non -stick pan!) then you don’t need to worry about sealing just yet.

Once you have confirmed that your stone needs sealing, make sure to choose the correct sealant for your floor. If you are unsure please contact us before starting.

You will need to ensure that the surface is clean so no dirt is trapped in during the sealing process. Start by vacuuming or sweeping up loose dirt and debris and then clean your floor using our RR Stone Maintenance Cleaner. You may find that your stone is particularly stained or has stubborn oils that you are having trouble cleaning off. For these situations use of an RR Stone Intensive Cleaner may be necessary. If you need advice please call one of our showroom advisors who will be able to help you.

You will need:


Sponge Applicator

Clean white cotton cloths or other lint free fabric


Work in smaller areas (1m² is great) and apply a layer of sealant a few to your stone using the applicator. Allow the sealant to sink in for a minute or so and then buff off any unabsorbed sealant using the clean cotton cloths. Ensure that you don’t let the cloths become saturated to prevent smearing.  Remove the final traces with another clean dry cloth to leave the stone looking as it does naturally.

Continue working in this way, bit by bit, to complete the rest of your floor.

2 coats of sealant is preferable and we recommend applying the second coat after 8 hours in the same way as before.

Once the sealant has dried the surface can be used. For the first 48 hours be mindful of wiping up any spillages immediately. This is because the sealant takes time to fully cure.

Tips for stone maintenance:

Wipe up any spillages quickly to prevent risk of staining

– Sweep/vacuum floors regularly

– Place mats at entryways

– Use a PH neutral cleaner designed for stone

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