Koster Quellband Water Bar Box Of 6 x 5mtr Rolls
Koster Quellband is a sodium-bentonite based water swellable joint tape.
Advantages:
- Easy application No special tools are needed
- Permanent seal of the joint after swelling- fills all voids and cracks in the concrete
- Easy to use, non-sticky surface even at high temperatures
- No material fatigue- swells in the installed state even after years
Fields of Application
Koster Quellband is used as a water stop in concrete construction joints. The robust strip is simply nailed on to an existing joint face before the consequent concrete pour. Any leakage through the joint activates the Koster Quellband. Quellband can be applied in all vertical and horizontal joints.
Substrate
The substrate to be sealed must be sound and solid, free of dust, oil, and grease as well as other bond inhibiting contaminants. Larger irregularities or imperfections in the installation area must be levelled with Koster Repair Mortar.
Application
Koster Quellband is installed in horizontal or vertical construction joints in the centre of the component with a minimum concrete cover of 8 to 10cm.The concrete cover is required to absorb the expansion pressure of the Koster Quellband. Quellband is fixed at a maximum distance of 35cm with steel nails or impact dowels. At roll ends or intersections the Quellband is simply butt jointed together and should not be overlapped. The Koster Quellband is installed immediately before the formwork is erected or as close as possible to the time of concreting. Should there be any major delays before concreting, the Quellband must be protected from rain and water accumulation by suitable means (e.g. covering).
Dimensions: 20mm x 25mm x 5mtrs per roll. Box of 6 rolls – 30 meters
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