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Waterproofing tanks and pipes in sewage systems always represents a challenge due to the multiple substrate conditions, different construction materials, as well as the varying demands on each element. Active leakages can be stopped within a few seconds simply by using the dry powder KÖSTER KD 2 Blitz Powder or, alternatively, the plugging mortar KÖSTER Waterstop.
For substrate preparation, all contaminants and separating substances must be removed from the surface. After that, the surface has to be levelled and reprofiled with KÖSTER Repair Mortar NC or KÖSTER Repair Mortar R4.
Large areas are waterproofed with the mineral-based, sulfate-resistant waterproofing system KÖSTER NB 1.
Floor and wall areas that are subject to acid attack caused by condensation of gases can be protected with the three-component, highly chemical-resistant, silicate- and polymer-based special mineral mortar KÖSTER PSM. The sealant KÖSTER PSM 2S+ serves as protection against thermal and chemical stresses.
The quick restoration of concrete elements is accomplished with the watertight, fast-curing and fast-setting restoration mortar KÖSTER Sewer and Shaft Mortar, allowing a rapid reopening of the sewage system. KÖSTER Sewer and Shaft Mortar develops high compressive strength, is fiber-reinforced, very easy to apply, and workable even under flowing water. It is also approved for drinking water applications.
Voids and even gaps between elements can be securely sealed down to the smallest pores using the extremely low-viscosity acrylic gel KÖSTER Injection Gel G4. Crack injections can be carried out with KÖSTER 2 IN 1.
Always adhere to the specifications in the respective Technical Guidelines.
