Harder, better-protected concrete for vehicle traffic

Vehicles bring in water and leave marks

Cars coming down the ramp carry water and dirt in on their tyres. On the turn, the tyres scrub across the concrete and leave dark marks that work their way into the open surface. Every now and then, oil drips from a parked vehicle.

Illustration: A parking deck with a van and cars in bays along the wall. A car comes off the ramp leaving wet tracks, there are dark tyre marks on the turn, and oil drips from the van, forming a stain on the floor marked as a detail.

Oil soaks into the concrete

A drop of oil spreads over the open surface and runs into the concrete through pores and capillaries. The stain stays after the surface has dried, and cleaning does not remove it.

Illustration: Section through the slab under the van. Oil drips from the engine and spreads over the surface; in the section it moves down through pores and capillaries.

Grinding, HARD and SEAL 3.0

We grind the slab back to sound concrete, removing the contaminated top layer. HARD penetrates the surface layer and hardens it for vehicle traffic. SEAL 3.0, which is also suitable for wet and outdoor areas, seals the surface so that it absorbs less water and is easier to clean.

Where oil has penetrated deeper, the stain may still show after grinding.

Illustration: Section after grinding and treatment: the surface layer where HARD and SEAL 3.0 have reacted in the concrete is marked in violet, the surface pores are closed, and a faint trace of old oil remains deeper in the concrete.

PROTEC: a new drop stays on the surface

PROTEC is a liquid-repellent impregnation for stain protection. When the engine drips oil again, the drop stays on the surface and you can wipe it up before it spreads.

Clean up spills promptly. How well the surface repels a liquid depends on the type of liquid and how long it stays on the floor. We do not promise chemical resistance.

Illustration: After PROTEC is applied, a new drop of oil from the van stays on the surface as a bead. A dashed line shows how deep the oil soaked in before treatment.