KÖSTER Crisin Cream

KÖSTER BAUCHEMIE AG has launched a pioneering product in the field of retroactive horizontal barriers on the market by developing a pasty emulsion cream which again emphasizes its claim to being a technology leader in this area. This process, patented by the German Patent Office, involves the production of an emulsion cream based on a water-in-oil emulsion. Therefore, the product is designed in contrast to the usual creams, which consist of an oil-in-water emulsions. This has surprising technical advantages. An emulsion is a mixture of different, usually immiscible liquids (e.g., oil and water), with special adjuvants (emulsifiers) stabilizing this condition for an extended period. This is done via an optimized manufacturing process. For a hydrophobizing cream as a horizontal barrier, two properties are particularly important:

1. The emulsion as an injection agent must be very finely divided and have a very good creep and penetration capacity to be able to penetrate deep into the smallest capillaries of the building material.
2. The emulsion should have excellent storage stability so that it can be stored for several months without sacrificing quality. The new KÖSTER Crisin Cream on a resin/silane basis combines these two factors in an ideal way. The surface properties of an emulsion are determined by the surrounding liquid. As KÖSTER Crisin Cream is a water-in-oil emulsion, the surface of this product is oily lipophilic.

Thanks to this property, the water is displaced on the building material surfaces. Moreover, the creeping and penetrating ability is much higher comparable to an oil and therefore much more developed than with a water-like hydrophilic consistency. In addition, salts in masonry do not dissolve in an oily liquid. Thus, the product is very stable in salty environments, opposite as to how oil-in-water emulsions behave which usually break down in the presence of salts and clump.

Due to its low density and its significantly lower surface tension compared to water, KÖSTER Crisin Cream penetrates the finest capillary pores and contributes to the significantly greater wetting of mineral building material surfaces. This is very important for the effect of a water-repellent cream.

KÖSTER Crisin Creme penetrates into the building material and displaces the water from the capillaries due to its emulsion state (water-in-oil)

The KÖSTER Crisin Cream is suitable for damp building materials with up to 95% moisture penetration. The patented process has also been successfully tested and certified according to WTA leaflet 4-4-04. In summary, the following six key properties distinguish the product from the water-repellent market:

1. As a water-in-oil emulsion, the KÖSTER Crisin Cream penetrates deeper into the building material and wets the surfaces considerably better.
2. KÖSTER Crisin Cream is solvent-free and can be used indoors without restriction.
3. The KÖSTER Crisin Cream has high stability. The effect is - unlike conventional creams - even in difficult conditions (high salt content, etc.) long-term stable.
4. The hydrophobic cream is suitable for almost all mineral building materials, (concrete, clinker, limestone, etc.) since no alkalinity is necessary for activation. KÖSTER Crisin Cream is alkali-free so that no salts or other harmful by-products are formed.
5. The active ingredients of KÖSTER Crisin Cream displace water from the capillaries so that the active ingredients can develop their water-repellent effect in the depth of the building material and on the surface.
6. The KÖSTER Crisin Cream is easy to work with: horizontal holes with hand-held pumps do not run uncontrollably due to the stable creamy consistency.

The KÖSTER Crisin Cream based on resin/silane supports the sustainable renovation of wet walls as a retroactive horizontal barrier and can be used in combination with other KÖSTER products.