Active Water Ingress Waterproofing System

A basement waterproofing system installed from the inside when water is actively entering the building. KÖSTER KD 2 Blitz powder is applied directly by hand to the active leakage. The powder reacts within a few seconds and forms a waterproof mortar. When the active leakages are stopped, the waterproofing layer of KÖSTER KD 1 Base, KÖSTER KD Blitz powder and KÖSTER KD 3 Sealer can be applied. The material is applied to substrates that have to be sound and solid as well as free of bond inhibiting agents. Older plaster coats have to be removed and joints raked out and all loose particles have to be removed. Generally, the substrate is primed by pre-wetting. Repairs and the installation of the fillet at the wall-floor junction are done with KÖSTER Repair Mortar Plus.

KÖSTER KD 1 Base is applied as the waterproofing layer and is brushed onto the substrate. KÖSTER KD 2 Blitz Powder is rubbed onto the still wet surface, immediately creating a dry waterproofed layer. To harden and to strengthen this layer the third part of the system, KÖSTER KD 3 Sealer, is applied. To waterproof the basement completely another two layers of KÖSTER KD 1 Base is applied over the first layer. Pipe penetrations are waterproofed with KÖSTER KB-Flex 200 Sealing Paste and plugged with KÖSTER KB-Fix 5.

In the case of damage to basement walls caused by moisture generally, KÖSTER Restoration Plaster should be applied. KÖSTER Restoration Plaster is especially designed for the restoration of masonry with high salt and moisture contents. It helps to dry out the wall and it absorbs remaining salts. It doesn’t contain lime or gypsum, is open to water vapor diffusion and creates a healthy and comfortable room climate.

Before the application of the main plaster coat, a plaster key made from the chosen KÖSTER Restoration Plaster mixed with KÖSTER SB-Bonding Emulsion is applied to provide a larger surface area and ensure an optimal bond to the substrate.

KÖSTER Restoration Plasters are available in different varieties (grey, white, fast and light). KÖSTER Restoration Plaster E Fast White is often used in older buildings without subsequent painting. KÖSTER Plaster Coat creates a very smooth surface and can be applied when desired to meet architectural needs. Plasters can only be painted over with breathable (open to vapour diffusion) paints such as KÖSTER Silicon Paint White or KÖSTER MF1.

System Components:

• KÖSTER KD 2 Blitz Powder – To stop active leakage.

• Primer: KÖSTER Polysil® TG 500.

• Surface leveller: KÖSTER Repair Mortar Plus.

• Fillet: KÖSTER Repair Mortar Plus.

• Waterproofing layer: KÖSTER KD 1 Base, KÖSTER KD 2 Blitz Powder and KÖSTER KD 3 Sealer.

• Sealant: KÖSTER KB-Flex 200 and KÖSTER KB-Fix 5.

• KÖSTER Restoration Plaster: To provide a key and finishing coat.

• Paint.