KÖSTER KB-Flex 200 is an innovative waterproofing system for sealing pipe penetrations and cable ducts. It is suitable for waterproofing against ground moisture and pressurized water. KÖSTER KB-Flex 200 is a one-component material and easy to use. It allows a reliable seal also with many different materials. KÖSTER KB-Flex 200 does not shrink or dry out and thus remains permanently plastic. Because of this feature, cables can be installed into the finished waterproofing material even at a later date if necessary. KÖSTER KB-Flex 200 is impermeable against water and vapour.

KÖSTER KB-Flex 200 can be applied on all mineral construction materials, e.g. concrete, masonry, mortar and plaster. It will also bond to ceramics and plastics such as PVC, polyethylene and polypropylene. The substrate can be dry, moist or wet. It must be sound, free of grease, tar and oil as well as dirt and other debris.

KÖSTER KB-Flex 200 can be installed with a normal mastic gun as it comes in 310ml tubs.