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SLATE SEALER- Enhanced Finish (Sample,1 & 5 litre) Leaves Slate Looking 'Damp'

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Customer Reviews

Amazing cool enhancer for slate. I followed the recommendation and stunned by the results. It has now been a few weeks and the colour is still the same. Brilliant sealer! I wish I could add photos.

By Pascal Gaucher From Southampton

Was expecting it be high gloss for my slate floor in kitchen alas no

By Vinny Buckley

This is a really good product. We thought it was a little on the expensive side but it was well worth the money. It has transformed a dusty grey slate patio into a rich coloured finish. It is very notice how water repellent it now is. Very impressed!

By Sally Gibbon

Fabulous product. Sealer gave a great finish to an outdoor slate path that was looking very tired.

By Steven Hunter From Buckinghamshire

Good product, promptly delivered. Used this sealer on a large piece of slate in a fire place. Just folled instructions, time will tell how well it seals.

By Jim Hawkins

Fabulous finish with this product and would highly recommend. We have purchased this previously and have also purchased the Cleaner too, which did the job. Customer service is excellent and fast delivery. Those researching before buying may think the products are a little more expensive however you are paying for a quality product, which gets you the results you want, so worth paying that little bit extra. We will be buying again.

By Helen C From Nottingham

Follow the instructions and you'll get a superb looking slate patio.

By George Lukaszewicz From Camberley

By Neil Jobson

Great product, goes on very easily and looks fab. I would recommend it.

By Janene Cherry

So far so good, only time will tell. Instructions for use straightforward and clear.

By Ros Joy
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Frequently Asked Questions



Impregnating Sealer for Slate

Seal and protect Slate tiles and floors

Smartseal Slate Sealer and Natural Stone Sealer is a high quality, clear, solvent free acrylic impregnating coating system. Application of the sealer will alter the chemical structure of the slate or natural stone providing a excellent water repellent and stain resistant surface.

One coat application
1 x 5 litre will treat up to 60 m2
Resistant to algae, lichen and staining
Will leave surface "wet/colour enhanced" looking dependent on porosity or colour of surface
Average coverage 10 m2 per litre
Application by cloth, roller or sprayer
Touch dry 2-3 hours
Fully waterproof 24 hours
Lifespan of approx. 5 years can be expected
Suitable for Slate surfaces externally or internally


PREPARATION: Prior to application of Slate sealer or natural stone sealer ensure surfaces to be sealed are clean, dry and free from contamination. If algae or stains are present pre treat prior to cleaning with a appropriate cleaning product.

**If applied to a surface where a "sweep-in" pointing compound has been used, the natural stone must be fully cleaned with Smartseal Residue Remover prior to sealant application.**

APPLICATION: A suitable  pressure sprayer or roller is recommended taking care to avoid any pooling. Application on all substrates should be to full saturation and on vertical surfaces commence at the bottom and work upwards. For internal surfaces application by a suitable cloth is appropriate.

Remove any excess after a maximum of 45 minutes via a dry roller or cloth. 

One application to saturation is normally required, do not apply in damp conditions nor temperatures below 12-15C. Shake container well before use.

All equipment should be cleaned with water immediately after use.

Finish may vary in accordance to type of stone applied to.

Always apply to a test area first.

SHELF LIFE: Store away from direct sunlight and sources of heat. Protect from frost.
12 months (in original sealed container).