Koster Quellband Water Bar Box Of 6 x 5mtr Rolls
Koster Quellband Water Bar is a sodium bentonite based water swellable joint tape with an alkalinity activated surface coating which stops premature swelling of the tape on the building site.
Koster Quellband Water Bar is used as a waterstop in concrete construction joints. The tape is supplied as a robust strip and is simply fastened onto an existing joint face before the next concrete pour. Any subsequent water leakage through the joint activates the tape, which takes up leak water and swells. Quellband is tested up to 7 bar water pressure.
In comparison to plastic or resin based swellable tapes, which do not alter their structure during swelling, Quellband breaks down during the swelling process and the resulting paste seals all cracks and voids permanently.
Quellband Water Bar is suitable to be used in potable water tanks. The tape also has a limited swell in seawater tanks and water treatment plants.
The tape is easy to use and has a non-sticky surface, even at high temperatures in the summer.
Application is very easy, the bar is nailed down on the concrete joint.
Dimensions: 20mm x 25mm x 5mtrs
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