13/07/2026
KÖSTER Deuxan 2K is a two-component, fiber-reinforced rubber-bitumen waterproofing compound designed to create a seamless, elastic, and durable waterproofing layer on both horizontal and vertical surfaces. The product is CE certified and complies with DIN 18533:2017-07 and DIN EN 15814-W2A standards.
KÖSTER Deuxan 2K is a black, two-component waterproofing material consisting of:
Liquid component (24 kg)
Powder component (8 kg)
The two components are mixed to form a homogeneous compound that creates a flexible and durable waterproofing membrane on the applied surface. Its fiber-reinforced formulation provides outstanding elasticity and forms a seamless waterproofing layer. These properties make it a preferred solution for professional waterproofing applications.
According to the technical specifications, KÖSTER Deuxan 2K is suitable for:
Foundation waterproofing systems
Retaining wall waterproofing
Terrace waterproofing
Underground parking garage waterproofing
The product is also resistant to microorganisms and highly resistant to aggressive groundwater, ensuring reliable and long-lasting waterproofing performance even under demanding ground conditions.
Rubber-bitumen based
Fiber reinforced
Black color
Two-component formulation
Forms a flexible waterproofing layer after mixing
Provides seamless membrane coverage
Resistant to microorganisms
Resistant to aggressive groundwater
CE certified
Complies with DIN 18533:2017-07
Complies with DIN EN 15814-W2A
3.0–6.0 kg/m²
(Depending on the substrate condition and the required dry film thickness.)
32 kg set
24 kg liquid component
8 kg powder component
It is used for foundation waterproofing, retaining walls, terraces, and underground parking structures.
Yes. It is supplied as a 32 kg set consisting of a 24 kg liquid component and an 8 kg powder component.
It complies with DIN 18533:2017-07 and DIN EN 15814-W2A standards and is CE certified.
The consumption ranges from 3.0 to 6.0 kg/m² depending on the substrate and application requirements.
It is a black waterproofing material.