Block paving sealer, wet look EI-23 EKSIL

Limits the ingress of water and oils into driveways, patios, car parks and steps while bringing out the natural tone of the surface. It reduces streaking and efflorescence. A water-based microemulsion of fluorosilanes and siloxanes - protect the surface from rain until dry.

Surface

Block paving

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Product image: Block paving sealer, wet look EI-23 EKSILBlock paving

EI-23 is a water-based product with a wet-look finish - an unusual combination, because most colour-deepening sealers are solvent-based. The base is a microemulsion of fluorosilanes and siloxanes.

In practice that means working without an unpleasant smell and washing tools in water, while keeping both water and oil repellency. According to the manufacturer it also reduces streaking, efflorescence and microbial growth, and limits frost damage.

You can apply it not only by roller and brush but also by airless spray or flood coating - a real help on large drives and car parks. Coverage 6-8 m² per litre.

The usual reason a sealing job fails is not the product but the substrate. A sealer will not bond to a surface with grease, lime efflorescence or an old coating on it.

  1. Wash the paving. Lift oil stains with a degreasing cleaner - water alone, even under pressure, will not shift them.
  2. Remove lime efflorescence with a product made for it, not with hydrochloric acid from the builders' merchant.
  3. Make good the joints and let them set. Sealer applied over an empty joint runs straight into the sub-base.
  4. Wait until the paving is dry all the way through, not just on top. Moisture trapped under the film can bloom it white.
  5. Check the forecast. Rain within a day of application will wash off a fresh coat.

New paving has to season first - usually around 28 days from the date the block was made. You will find the exact time for each product in its technical data.

Before sealing the whole area, test on a patch hidden by a planter or in a corner of the patio. The same product can read differently on two batches of the same material, and on a surface with old coating left on it, it will not bond at all.

Coverage
6-8 m²/l
Coats
1
Base
water-based
Finish
wet look
Application method
roller, brush, airless spray, flood coat
Dilution
Do not dilute
Where to use
indoors, outdoors
Chemical base
aqueous microemulsion of fluorosilanes and siloxanes
Density
1.00-1.01 kg/l
pH
7-8
After application
protect from rain until dry
Will the sealer change the colour of my paving?

Only if you want it to. An invisible product leaves the colour alone, a wet-look sealer deepens it permanently, and a colour sealer gives it a new shade.

How do I know when to seal again?

By how the water behaves. While it still beads on the surface, the treatment is working. Once water starts soaking in and dark patches return after rain, the protection has worn out.

Can I apply sealer to wet paving?

No. Water occupies the pores the product is meant to enter, and stays trapped under the film. The result is often a milky bloom that cannot be removed without stripping the coat. The exceptions are the few products that tolerate slight surface dampness.

Will sealing make the paving slippery?

Not if you choose a penetrating product - it forms no film on the surface and does not change its grip. If the surface is already slippery, choose an anti-slip treatment rather than a sealer.

EI-23 or EI-15?

EI-23 is water-based, more economical and easier to work with; it gives a subtle wet look that brings out the natural tone of the paving. EI-15 is solvent-based and gives a stronger wet-look effect, but needs two coats a day apart.

Is it suitable for a car park or a drive?

Yes - domestic car parks, drives, patios and steps are its primary uses.

Coverage calculator

Enter the area and how absorbent the substrate is. We work out the litres and the packs.

Average consumption - an absorbent substrate will take more.

Substrate absorbency

Calculated at 7 m² per litre.

Example for 45 m²

6.4L

  • 1 × 5 l169,00 zł
  • 1 × 2 l109,47 zł

Enter your own area to calculate for your job.

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Prepare the surface first

A sealer will not bond to a dirty surface. Start by cleaning it thoroughly.

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