Skip to main content

Construction

PETER GREVEN – Your partner for construction chemicals

Throughout the construction industry, building materials are treated to become hydrophobic.

 

Importance of hydrophobization

Hydrophobization is a crucial process in the construction industry that significantly enhances the durability and longevity of building materials. Hydrophobing agents coat the surface throughout the entire cross-section ensuring long-term protection against harmful weather effects. In addition to the prevention of water damage, they can also enhance the aesthetic appeal as efflorescence is reduced in certain applications. 

 

Effective hydrophobing agents

Our range of LIGAPHOB® hydrophobing agents includes four different product categories: 

METAL SOAPS | ALKALINE SOAPS | COMBINATION PRODUCTS | LIQUID PRODUCTS

Metal soaps are considered non-reactive hydrophobing agents. As a result of their natural hydrophobing effect, they are well-suited as water-repellents. Alkaline soaps offer very effective hydrophobization as well but are considered as reactive hydrophobing agents as they react with mineral components of building materials. Both types of products are well-known and established solutions throughout the construction industry. 

Combination products complement our range of metal and alkaline soaps as they combine the advantages of both. Depending on the ratio, either the properties of the reactive or the non-reactive component prevail.  

As an extension to our solid hydrophobing agents, we offer various liquid products. Including dispersions and liquid soaps, these products are used for special applications within the construction industry where the use of a liquid water-repellent is necessary. 

 

Our brands for the construction industry

LIGAPHOB®, LIGASTAR®, LIGAFLUID® and LIGA®

 

Application areas

Plaster

Plasters are essential building materials widely used in the construction industry. To enhance their durability, hydrophobization is crucial. 

For basic plasters, the requirements for the hydrophobing agent are less complex compared to other plaster types. It is vital that the hydrophobing agent maintains the plaster's ability to sustain a natural moisture balance.

Our metal soaps are ideal for the hydrophobization of basic plasters as they offer good hydrophobing properties without negatively impacting the natural moisture balance.

Finishing plasters demand superior hydrophobization since they serve as the top layer exposed to weather conditions. The hydrophobing agent used must not alter the surface structure of the plaster while ensuring maximum protection against moisture.

Depending on customer requirements, our product range includes metal soaps, alkaline soaps, and combination products for effective hydrophobization.

Restoration plasters are indispensable for restoration projects. They require high-performance hydrophobing agents that allow moisture to evaporate from damaged areas while preventing new water ingress.

Our metal soaps and combination products excel in this application, providing the necessary valve effect without compromising the air voids of the system.

Mortar

Adhesive and reinforcing mortars play a crucial role as the foundation for most multi-layer plaster systems. Effective hydrophobization is essential, as these mortars create a stable intermediate layer between the ground and the plaster, ensuring durability and performance.

Our alkaline soaps and combination products offer the best protection for adhesive and rein­forcing mortar. They enhance moisture resistance, ensuring that the mortar maintains its integrity and stability over time.

Grout is commonly utilized as a base for tiles or paving stones. In addition to offering good stability, it must provide a smooth surface. Hydrophobing agents are essential to prevent water penetration, which can cause swelling of the material.

The alkaline soaps and combination products have also proven to be very successful for grout applications.

Adhesive

Tile or reinforcement adhesives have special requirements for hydrophobization. The hydrophobing agent must ensure excellent wettability of the surface while also delivering a robust hydrophobing effect.

 

 

In line with these requirements, our alkaline soaps and combination products are particularly suitable. They enhance the performance of tile and reinforcement adhesives, ensuring reliable moisture resistance without compromising their adhesive properties.

Special Applications

External thermal insulation composite systems (ETICS) are multi-layer thermal insulation solutions that require effective hydrophobization to ensure durability and longevity. 

Our alkaline soaps and combination products provide the ideal properties for use in ETICS.

When it comes to materials like concrete, cement, and screed, mixing often occurs in liquid form. This creates unique requirements for hydrophobing agents, which must be liquid to minimize their impact on the capillary system and viscosity.

Our product portfolio encompasses dispersions and liquid soaps. These specialty products ensure optimal performance in hydrophobization, making them indispensable for construction projects involving liquid mixtures.

Product Management

Our product management is at your disposal for technical advice. For commercial inquiries you can contact our sales team.

Dr. Michael Heinz

Construction Brochure

ASSOCIATION MEMBER

Product Finder

Alle Produkte • Peter Greven Gruppe

Product Finder

Here you can find 
our product finder!