Flexible Waterproofing Mortar

KÖSTER 2K Flex is a polymer modified cement based, two component waterproofing product. It is flexible and has high water impermeability.

KÖSTER 2K Flex, which is especially suitable for use in wet areas and under ceramic waterproofing applications and forms a flexible - waterproof layer, adheres very strongly to surfaces such as concrete-plaster-screed, and has excellent adherence. It protects concrete structures against humidity, leakage and surface waters and the harmful effects of water, does not swell or separate over time.

The mixture is very easy to prepare and apply, it gives very good results even in hot weather thanks to its long processing time.

It has CE certificate in EN 1504-2 standard.