Oil stain remover for concrete and paving OL-1 CTS Chemistry

A ready-to-use product for oil and grease stains on concrete, block paving and floors. pH approx. 13 - gloves and eye protection are required. Consumption approx. 0.1-0.3 l per m².

Surface

Concrete and floors

The surface the manufacturer intends this preparation for.

Concrete and floors

OL-1 is a ready-to-use product for one problem: oil and grease stains on concrete, block paving and floors.

At pH approx. 13 it is among the strongest alkaline products in the catalogue - gloves and eye protection are mandatory, and contact with sensitive surfaces is ruled out.

Consumption approx. 0.1-0.3 l per square metre, application temperature +5 to +30 °C. The 1-litre pack matches the scale of the task: this is a product for a stain, not for washing a whole drive.

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. 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.

Coats
1
Application method
brush, brush (stiff), spray
Dilution
Ready to use - do not dilute
Application temperature
+5 to +30 °C
Where to use
indoors, outdoors
Form
ready-to-use product
Product density
approx. 1.0 kg/dm³
pH
approx. 13
Consumption
approx. 0.1-0.3 l/m²
Manufacturer's pack size
1 l
Will the sealer change the colour of my paving?

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".

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. We do not quote a number of years, because it depends on traffic, sun and whether the drive is salted in winter.

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 - products that allow slight surface dampness - say so in their technical data.

How much do I need to buy?

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.

Will sealing make the paving slippery?

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.

Will it remove an old, soaked-in stain?

Oil that has penetrated deep into concrete usually needs the treatment repeating, and in extreme cases does not come out entirely. The fresher the stain, the better the chance of a complete result.

What after the stain is gone?

Seal the surface with an oil-repellent product - otherwise the next stain will soak in the same way. Among the products marked as oil-repellent are EH-20, EH-21 and ProtectGuard.

The technical sheet and safety data sheet will be available after approval.

Coverage calculator

This product has no stated coverage yet, so we cannot work out the requirement.

The calculator starts once the manufacturer states the coverage.

Looking for another surface?

Go directly to the right category. We do not imply compatibility across materials.