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SLATE SEALER- Enhanced Finish (Sample,1 & 5 litre) Leaves Slate Looking 'Damp'
Sample Available
Product Reviews
By Colin Watts

Very effective sealer Beware not to apply for several weeks on newly laid slate 4 litres covered 25 sq m easily

By Pascal GaucherFROM Southampton

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 Vinny Buckley

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

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

(Available in Sample, 1 & 5 litre) Long Lifespan, Enriches Natural Colours- Easy to Apply. Impregnating sealer for Slate: Coverage up to: 12 m² per litre

Visa Electron
Product Description

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.

  • 1 x 5 litre will treat up to 50m on average, first coat
  • Highly resistant to algae, lichen and staining
  • Will leave surface 'damp' or 'wet' looking dependent on porosity of surface
  • Average coverage 10 m per litre first coat and 20 m per litre second coat, dependent on porosity and finish of surface
  • Application by roller or sprayer or suitable cloth
  • Touch dry 2-3 hours
  • Fully water-resistant in 24 hours
  • Lifespan of approx. 5 years can be expected
  • Suitable for Limestone can be used 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. 

Do not apply in damp conditions nor temperatures below 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).

Product FAQs

Q: Is it possible to add the anti-slip agent to the SLATE SEALER. Thanks George


A: Anti-slip is only formulated to be used with the Imprint solvent sealer, it's not compatible with the Natural Stone Sealers.

Response from Aaron

Q: Is there a strong smell after application? Is it safe for children and dogs to be in house after application?

Lisa donnan

A: This sealer for natural stone is solvent free and contains no distinctive smell. It contains no harmful ingredients.

Response from Nigel

Q: Is there a strong smell after application? Is it safe for children and dogs to be in house after application?

Lisa donnan

A: There may be a minor smell after application if the sealer is applied internally. Natural Stone Sealer (Colour Enhancer) is a solvent-free product, therefore any odour at the point of application would be minimal. Smartseal would suggest allowing a minumum of 24 hours before chldren or pets use the area. Hope this helps.

Response from Alex
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