Reduce the capillary water absorption of weather-exposed concrete components without completely closing the pores.
Betonschutz
Our deep hydrophobization makes exposed concrete water-repellent and more resistant to weather influences. This process prevents the penetration of water-soluble pollutants and ensures long-term protection over several years. This means your surface is protected without changing the visual appearance of the surface.
At a glance
Deep hydrophobization reduces water absorption in the concrete and protects deeper pore areas. It is useful for concrete components that are permanently exposed to weather and moisture.
Relevant for planners, builders, administrations and operators of facades, bridges, traffic and exterior components made of concrete.
Capillary pores absorb water and can accelerate damage processes.
BKOS assesses the absorbency and substrate, selects a suitable hydrophobic system and controls the application.Water absorption is reduced while the concrete appearance is largely retained.
Dense surfaces, residual moisture or previous treatments can limit penetration.
BKOS checks suction behavior and pretreatments before determining the system and application quantity.Unsuitable applications are identified early and the measure can be planned for each property.
Your property
Send us photos or project details. We will assess the most suitable method.
Deep hydrophobization does not replace the elimination of the cause of active damage. Substrate moisture, suction behavior and application quantity must be checked on a property-specific basis.
BKOS works throughout Switzerland for private, commercial and public construction projects. The deployment planning depends on the object, surface, access and appointment window.
Winterthur / Zuerich / Lachen / Deutschschweiz / Schweiz
Practical expertise
BKOS combines hydrophobization with substrate analysis and surface protection so that the protective measure matches the real demands.
Content reviewed on 17.06.2026.FAQ
The hydrophobic agent penetrates the capillary pore structure and reduces water absorption there. The pores are not completely closed, which means water vapor can continue to escape.
With deep hydrophobization, the focus is on penetration depth and reduction of capillary water absorption. The term impregnation is used more broadly and can also include systems with a different effect or lower penetration depth.
The reduced water absorption can reduce frost and de-icing salt loads. However, it does not replace the repair of cracks, spalling or chloride-contaminated concrete and must be part of a suitable protection concept.
Suitable systems usually only change the appearance of the concrete slightly. Nevertheless, sample areas are necessary because the color and water repellency can have different effects depending on the absorbency and pretreatment.
The time of inspection depends on exposure, penetration depth, use and product. Water absorption can be assessed through tests or comparison areas before renewal is planned.
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