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Premium Impregnating Sealer


Premium Impregnating Sealer is our most powerful breathable impregnating sealer, suitable for limestone, sandstone, marble, concrete, slate, brick, Victorian tiles, terracotta, quarry tiles & more. This natural finish impregnating sealer can be used on internal and external surfaces.

Premium Impregnating Sealer will not change the appearance of the surface it is applied to. The sealed surface will retain a natural unaltered appearance but will become resistant to water and oil-based staining.

Premium Impregnating Sealer is particularly effective at sealing highly porous surfaces due to its high active content. Such as sandstone, slate, encaustic tiles, limestone, marble, basalt, clay tiles, bricks & man-made materials.

Can be applied to floors, walls, wet rooms, shower cubicles, pool surrounds, fireplaces, ornaments & worktops. Suitable for domestic & commercial use.

Available in 1 litre, 5 litre & 20 litre containers with free economy shipping and express delivery shipping options. Samples are available.

Please read the full instructions & related information contained within the Technical Data Sheet. If you require help choosing a sealer or cleaning product please feel free to contact us on (01484) 861461. You can email us at


  • Please read the Technical Data Sheet for full instructions.
  • Carry out a test in an inconspicuous area.
  • If you find this product is not suitable for use on your project, do not continue to use.
  • Make sure all surfaces are totally clean and completely dry.
  • Remove any residues from grouts and jointing compounds before sealing.
  • Do not apply if rain is likely in the next 24 hours.
  • For use on Internal floors turn off all underfloor heating systems and allow the floor to cool.
  • Apply with a brush, masonry roller, paint pad or sprayer and allow to soak into the surface.
  • When applying to exterior surfaces spraying produces the best result.
  • Remove all excess with dry (microfibre) cloths within approximately 10 – 20 minutes of application.
  • Do not simply apply the product and leave to dry onto the surface; all excess must be removed.
  • Apply more product, approximately 40 minutes after the 1st application, remove the excess as before.
  • You may only require a single application of this product on very dense surface.
  • The product dries in approximately 2 hours and cures over 24 hours.
  • This product should only be applied when air temperatures are above 10ºC and below 20ºC.
  • Safe for children and pets when dry.
  • Do not apply to non-porous surfaces.
  • Can be used as a pre-sealer before grouting.

100% breathable sealer for quality internal and external natural stone

Premium Impregnating Sealer is a fully breathable powerful impregnating sealer. This impregnating breathable sealer is suited to any application where, once sealed, the surface retains an unaltered natural appearance. This stone & tile sealer is suitable for sealing internal or external natural stone, man-made or clay-based tile. This includes surfaces which may be dense, polished or finely honed. Premium Impregnating Sealer allows full moisture vapour transmission so is suitable for listed buildings. This effective sealer is perfect for any situation where the treated surface needs to resist water and oil-based staining. In addition to this Premium Impregnating Sealer does not alter the surface it is applied to. Sealing natural stone or tile resists water & oil-based staining and organic growth like algae. The sealed surface makes ongoing maintenance much easier. This sealer penetrates the surface of the stone or tile and becomes meshed into the pores. It will still allow 100% moisture vapour transmission. Suitable for Victorian geometric Minton tiles, including mosaics, quarry tile and Edwardian terrazzo floors. It will allow moisture transmission from lime based screeds and mortar. Premium Impregnating Sealer can be applied to both interior and exterior surfaces for maximum protection against staining. It is a powerful and versatile floor tile sealer and wall tile sealer. Suitable for use in kitchens, bathrooms, living areas, worktops and shower cubicles.

Premium Impregnating Sealer for tiles & grout

This sealer can be used to seal both the face of the tile and associated grout lines. This includes lime based joints or modern sand and portland cement based pointing. Any porous tile can be sealed with this product, it is particularly useful when you wish to retain an unaltered appearance. The polymers which seal the tile penetrate the surface and become meshed into the pores, they do not create a surface sheen or shine. It is for this reason we describe the product as ‘matt finish’ – In actual fact, as with most impregnators, it has no visible finish due to it being a sub surface sealer. The sealer does not ‘wear’ like a surface sealer as there is no surface film to wear off. The product should be applied to a totally dry surface and allowed to penetrate into the pores of the tile. Make sure you wipe any excess from the surface before it dries. This product can be applied by roller, paint pad or brush in a single application or two consecutive applications (dependant on porosity). When sealing allow the product to soak in, then remove any obvious excess within approximately 10 – 20 minutes. Remove the excess with microfibre cloths, absorbing all excess sealant. This product will leave the treated surface with a breathable natural seal. It can be used on external and internal surfaces including wet rooms. It will not effect the slip resistance to your tiles. Available in 1 litre, 5 litre & 20 litre container with free economy shipping and express delivery shipping options. Samples are available. Please read the full instructions & related information contained within the Technical Data Sheet. If you require help choosing a sealer or cleaning product please feel free to contact us on (01484) 861461. You can email us at  

Approximately 6m2 per litre and 12m2 per litre for the 2nd application.

The individual level of porosity of each type of surface will dictate the overall coverage.

As a general guide 5 litres of product will cover 20m2-25m2 when applied in 2 consecutive applications.



UK MainlandStandard Delivery (4 working days) Free
Express Delivery (1-2 days) £3.95 inc VAT
Saturday Delivery £7.99 inc VAT
Scottish Highlands & Islands£9.60 inc VAT
Delivery can take 5-10 working days.
Orkneys & Shetlands£15.00 inc VAT
Delivery can take 5-10 working days.
Isle of Man£24.00 inc VAT
Delivery can take 5 working days.
Isle of Wight£2.40 inc VAT
Northern Ireland£9.60 inc VAT
Delivery can take 3-4 working days.

Delivery Charges & Timescale

  1. Shipping is based on a free standard delivery service to UK mainland addresses of 4 working days.
  2. An alternative paid express delivery service of 1-2 days to UK mainland addresses is available.
  3. Our couriers do not deliver on Sundays (or bank holidays) other than by special additional arrangement (see below).
  4. Saturday deliveries are made by Parcelforce, all orders must be received by 1pm Friday. Saturday deliveries are a signed for delivery service only. There is no ‘leave safe’ option.
  5. For the Highlands and Islands (including Northern Ireland) our standard shipping time may be slower than 4-5 days and is not free.
  6. Express/Saturday shipping options to the Highlands & Islands & Northern Ireland is not available.
  7. Standard delivery is free except to the Scottish Highlands & Islands, Northern Ireland, Orkneys, Shetlands & other UK offshore Islands.
  8. We do not dispatch orders on a Saturday or Sunday or bank holidays.
  9. We do not offer guaranteed shipping timescales.
  10. We do not deliver to the Channel Islands, or Scilly Isles.
  11. Any query over failed/missing deliveries must be made within 21 days of delivery date. Courier companies will not initiate investigations after this time.
  12. Any refund request made after 21 days is purely at our discretion, if a delivery has been made and is classified as ‘delivered’ by the courier company & associated tracking information. This does not always include GPS or photographic evidence.

For the latest guides and information on best user practices, click here.

Frequently Asked Questions

  • Which materials can I use this sealer on?

    Sandstone, limestone, slate, granite, basalt, marble, concrete, bricks, quarry tile, minton tiles, terracotta, encaustic tiles, clay-based tiles & more.

  • Is Premium Impregnating Sealer flammable?

    Premium Impregnating Sealer is water-based & non-flammable. Free of solvents & VOCs.

  • Can I seal grout with this sealer?

    Premium Impregnating Sealer should be applied to the grout & face of the tile.

  • Can I seal a porcelain with this sealer?

    We do not recommend sealing fully vitried with this product – but we do have sealers specifically for porcelain which you can view on this website under the ‘shop by product’ section or ‘shop by surface’ section.

  • What finish does Premium Impregnating Sealer produce?

    This product is a penetrating sealer (know as an impregnator) so the sealing polymers are meshed into the pores of the tile. It does not alter the appearance of the tile. The sealer does not form a skin, film, or lacquer so your tiles will have exactly the same appearance after treatment with this product.

  • Is this an internal or external sealer?

    Premium Impregnating Sealer can be applied to external and internal tiles.

  • What does this tile sealer protect against?

    Water & oil-based staining and inhibits organic growth on external surfaces.

  • Can I use this floor sealer on other surfaces like fire surrounds & worktops?

    Yes, premium Impregnating Sealer is food safe and non-flammable. It can be used around multi-fuel burning stoves, kitchen worktops, ornaments & hearths.

  • Does Premium Impregnating Sealer have a strong odour?

    No, this product is low odour. It is solvent & VOC free. Premium Impregnating Sealer is non-flammable so is suitable for indoor use.

  • Can I use this product in a bathroom or wet room?

    Yes, Premium Impregnating Sealer is suitable for bathrooms & wet rooms as it is totally breathable. The sealer will penetrate porous tiles and associated grout lines. The application of this product will not alter the slip resistance to the floor.

  • Does the application of Premium Impregnating Sealer make the floor slippy?

    This sealer is an impregnating sealer so it is locked into the pores of the tile. It does not form a skin or lacquer therefore the floor retains its slip resistance.

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Additional information

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100ml Sample, 1 Litre, 5 Litre, 20 Litre