13/07/2026
KÖSTER KBE Flüssigfolie is a single-component, rubber-bitumen-based waterproofing product that is free of solvents. Once cured, it forms a seamless and completely waterproof membrane on the applied surface. Thanks to its UV resistance, exceptional elasticity, and ability to maintain performance across a wide temperature range, it is widely used in professional waterproofing applications.
KÖSTER KBE Flüssigfolie is a brush-applied, single-component liquid waterproofing material based on rubber-bitumen technology. It contains no solvents and forms an integrated, seamless waterproofing layer after curing. It provides excellent adhesion to both mineral and non-mineral substrates without blistering, peeling, or delamination over time.
According to the technical specifications, the main features of the product include:
Rubber-bitumen based
Single-component formulation
Solvent-free
Forms a seamless waterproofing membrane after curing
Maintains performance in temperatures ranging from -20°C to +200°C
Highly resistant to UV radiation
Suitable for areas exposed to direct sunlight
1000% elasticity
Excellent crack-bridging capability
Suitable for below-ground applications
Resistant to microorganisms
Resistant to aggressive groundwater
Excellent adhesion to a wide variety of substrates
Does not blister or delaminate over time
Compatible with the KÖSTER NB System
Suitable for repairing bituminous membranes and shingles
KÖSTER KBE Flüssigfolie is designed for use in:
Terrace waterproofing
Flat roof applications
Roof gutter waterproofing
Retaining wall waterproofing
Standalone waterproofing applications
Applications in combination with the KÖSTER NB System
Repair of bituminous membrane and shingle joints
Below-ground waterproofing
Exterior surfaces exposed to direct sunlight
The product delivers long-lasting waterproofing performance, especially in outdoor applications requiring superior UV resistance.
2.0–3.0 kg/m²
5 kg bucket
20 kg bucket
The product maintains its performance in temperatures ranging from -20°C to +200°C.
Yes. It is highly resistant to UV radiation and is suitable for surfaces exposed to direct sunlight.
It provides excellent adhesion to a wide range of both mineral and non-mineral substrates.
Yes. It is resistant to microorganisms and aggressive groundwater, making it suitable for below-ground waterproofing applications.
The recommended consumption is 2.0–3.0 kg/m².
It is suitable for terraces, flat roofs, roof gutters, retaining walls, as well as the repair of bituminous membranes and shingles.
