A water-based microemulsion of fluorosilanes and siloxanes for driveways, patios, car parks and steps. It limits the ingress of water and oils while bringing out the natural tone of the surface, and reduces streaking and efflorescence.
Surface
Block paving
The surface the manufacturer intends this preparation for.
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. The manufacturer lists reduced streaking, efflorescence and microbial growth, and less frost damage.
The permitted application methods are wider than usual: besides roller and brush the manufacturer allows airless spray and flood coating - which matters 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.
New paving has to season first. Manufacturers state that period on the data sheet - usually around 28 days from the date the block was made. The figure for each product is under "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.
That depends on the finish given in the technical data. An invisible product leaves the colour alone, a wet-look version deepens it permanently, and a colour sealer gives it a new shade. Each product's finish is listed under "Technical data".
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. We do not quote a number of years, because it depends on traffic, sun and whether the drive is salted in winter.
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 - products that allow slight surface dampness - say so in their technical data.
Use the calculator under the product description: it takes the manufacturer's coverage figure, the number of coats and the absorbency of the substrate, and turns them into pack sizes. On older, thirstier paving, work to the lower end of the coverage range.
Penetrating products form no film on the surface and do not change its grip. Where a manufacturer says something about slipperiness, we quote it in the technical data. If the surface is already slippery, the right product is an anti-slip treatment, not a sealer.
EI-23 is water-based, more economical and easier to work with; the wet look is subtle - the manufacturer writes of bringing out the natural tone. EI-15 is solvent-based and gives a stronger wet-look effect, but needs two coats a day apart.
Yes - the manufacturer lists domestic car parks, drives, patios and steps as the primary use, and allows airless spray on larger areas.
The technical sheet and safety data sheet will be available after approval.
Enter the area and how absorbent the substrate is. We work out the litres and the packs.
The manufacturer's average figure; an absorbent substrate will take more.
Example for 45 m²
6.4L
Enter your own area to calculate for your job.
An impregnation will not bond to a surface with anything left on it. This is the most common cause of complaints.
Go directly to the right category. We do not imply compatibility across materials.