A water-based acrylic dispersion that gives paving and concrete an even colour while lowering the ingress of water, weak acids and salts. It forms a dust-free polymer layer and limits carbonate efflorescence.
Surface
Block paving
The surface the manufacturer intends this preparation for.
EI-19 does two things at once: it gives colour and it protects. It is a water-based acrylic dispersion, so it works without an unpleasant smell and the tools wash out in water.
You choose it when paving or a fence has faded unevenly and an invisible sealer will not put that right. The product covers differences in shade and leaves an even colour. The manufacturer offers grey, graphite, anthracite, black, red and white.
What separates it from the solvent-based EI-26 is the base and the coverage: EI-19 gives 4-6 m² per litre and is water-based; EI-26 gives 8-10 m² and penetrates dense concrete more deeply. On very porous substrates the manufacturer advises a second thin coat.
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 We do not quote a number of years, because it depends on traffic, sun and whether the drive is salted in winter.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.
No. The final shade comes from the colour of the product and the colour of the block underneath, so the same product on grey and on graphite paving gives different results. The manufacturer requires a test patch before the full job.
The product forms a polymer layer on an absorbent mineral substrate - how well it bonds depends on whether the paving was clean, dry and seasoned. Over old coating or cement laitance it will not bond properly.
The manufacturer gives one coat as sufficient, with a second thin coat on very porous substrates for better coverage.
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.
Consumption depends on how absorbent the material is and on how it is applied. On a very porous substrate the manufacturer recommends a second thin coat.
Example for 45 m²
9L
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.