13/07/2026
KÖSTER KB-Flex 200 is a special polyolefin-based sealant developed to solve waterproofing problems around cable and pipe penetrations. It provides excellent adhesion even on wet surfaces and can be applied against actively flowing water. Thanks to its flexible structure, it does not harden over time and ensures permanent waterproofing.
The product is supplied in sausage packaging and can be easily applied using a sealant gun.
KÖSTER KB-Flex 200 is a putty-like sealant made from polyolefin material.
It does not harden over time and maintains its elasticity.
Provides long-lasting waterproofing for cable and pipe penetrations.
Easy to apply using sausage packaging and a sealant gun.
Strong adhesion even on wet surfaces
Can be applied against flowing water
Excellent adhesion to concrete, plastic, rubber, and metal surfaces
Putty-like consistency that remains permanently flexible
Specially developed for cable and pipe penetrations
Provides immediate results with no waiting time after application
Ensures permanent waterproof sealing
Water tanks
Swimming pools
Basements
Retrofitted plumbing pipes
Cable and pipe penetrations
Any area where the waterproofing layer has been interrupted
It is particularly suitable for quickly sealing waterproofing defects created by newly drilled service penetrations.
Can be applied to wet surfaces
Reliable solution against flowing water
Putty consistency effectively fills leaks and voids
Excellent adhesion to various substrates
Immediate results with no curing wait time
Ideal for service penetrations
Easy application with a sealant gun
Consumption: 1.60 kg/L
Packaging: 20 × 530 ml sausage cartridges per box
It is used to waterproof cable and pipe penetrations.
Yes. It provides excellent adhesion even on wet surfaces.
No. It provides immediate sealing performance after application.
It adheres strongly to concrete, plastic, rubber, and metal surfaces.
It is supplied in boxes containing 20 sausage cartridges of 530 ml each.
