Acrylic Gel - Curtain Injection Waterproofing System

Exterior basement waterproofing from inside the building: in the case of renovation, it is not always possible to expose the exterior walls through excavation. For example, where the area to be excavated is built upon, traffic concerns impede the excavation, or the economic cost of excavation is deemed prohibitive.

In this case you would first think of an internal (negative side) basement waterproofing, but in some cases, such as in historical buildings or buildings with special architectural requirements, this may not be desirable.

In these cases a curtain injection with Koster Acrylic Gel is possible; where the resin is injected through the wall from the inside, to the outside.

The resin reacts with the water and moisture in the ground and binds it resulting in a waterproof, elastic mass. The injection is carried out with a special pump and through patented Koster Gel Injection packers. The injection material is dispersed on the exterior face of the wall and in a short time reacts to form the waterproofing layer.

An alternative method is injecting Koster Injection Gel into the building member itself. This so-called “area injection” is possible in porous or hollow building materials. In this case the Koster Injection Gel also reacts with any water present to form a waterproof, elastic mass.

System Components:

• Pump: Koster Acrylic Gel Pump.
• Packer: Koster Injection Gel Packer.
• Waterproofing layer: Koster Injection Gel G4 or Koster Injection Gel S4.

For further information or design assistance, please contact the Koster Technical team at technical@kosteruk.com.