Penetrating waterproofing is considered a very versatile and popular type of waterproofing materials, which is why we want to talk about it in our article.
The principle of operation of penetrating waterproofing
Penetrating waterproofing is a cement–based material that contains special crystals whose task is to penetrate as deep as possible into the pores of the surface and prevent moisture from penetrating into them.
This type of waterproofing is also called crystallized waterproofing.
Penetrating waterproofing is designed to work on surfaces with narrow pores, for example, on high-quality concrete. But on surfaces with wide pores, the material is ineffective (for example, on foamed concrete).
Penetrating waterproofing is best used immediately after (or even during) the construction of surfaces. This way it will be more effective.
How to properly prepare the surface before applying penetrating waterproofing?
Proper surface preparation before applying the material is already a quarter of success.
Penetrating 
waterproofing must be applied to the cleaned surface, without concrete milk and any residues after the construction phase. Immediately before applying waterproofing, it is necessary to moisten the surface very well with ordinary clean water. How deeply the water penetrates during the preparatory work depends on how well the penetrating waterproofing will fill the pores of the surface and, as a result, protect it in the future.
Primed or not primed before applying penetrating waterproofing?
Since the principle of penetrating waterproofing is filling the pores of the surface, a primer is not needed here and, even, can cause harm, since its principle of operation is similar.
Technical characteristics of penetrating waterproofing
Using the example of penetrating waterproofing Teknomer 100, we will show the technical characteristics that a high-quality material should have:
- Density – 1.98 kg/l
- Adhesion strength – from 1.0 N/mm
- Capillary absorption of water – up to 0.1 kg/m2*h
- Vapor Permeability - Class 1; Sd <5
- Temperature resistance – from -25 °C to 80 °C.
