10/07/2026
KÖSTER NB 2000 is a two-component, cement-based waterproofing mortar that provides long-lasting waterproofing performance with its fully elastic structure and high resistance to cracking. It offers reliable protection against both positive and negative water pressure in interior and exterior applications.
Its elastic formula tolerates structural movements such as expansion, vibration, and settlement, minimizing the risk of cracking. This ensures long-lasting and permanent waterproofing protection.
Structure: Two-component system (powder + liquid)
Flexibility: Fully elastic, adapts to structural movements
Temperature Resistance: Resistant to freeze-thaw cycles
Application Method: Applied by brush, trowel, or spraying equipment
Thickness: Approximately 3 mm total thickness recommended with two-coat application
Color: Grey and white
High Flexibility: Resistant to cracking on moving floors and walls
Complete Waterproofing: Provides reliable protection in areas exposed to continuous water pressure
Freeze and UV Resistance: Provides long-lasting protection against outdoor conditions
Easy Application: Can be applied practically by brush, spraying equipment, or trowel
Free from Toxic Substances: Suitable for areas in contact with drinking water
Resistant to Negative Water Pressure: Protects structures against water pressure from both interior and exterior sides
Balconies and terraces
Underground structural elements (basements and foundation retaining walls)
Wet areas (bathrooms, showers, toilets)
Water reservoirs and drinking water tanks
Elevator pits
Tunnels and culverts
Surfaces with crack formation risks
The surface must be cleaned from dust, oil, and loose particles. It should be damp but free from standing water.
Both components are mixed in the correct proportions until a homogeneous consistency is achieved.
The first coat is applied horizontally, and the second coat is applied vertically to ensure complete coverage.
Sufficient drying time should be allowed between coats.
During the curing period, the surface should be protected from direct sunlight, frost, and wind.
Yes. Thanks to its fully elastic structure, it provides resistance against cracking on moving surfaces.
Yes. It can be safely used in areas such as drinking water tanks and similar applications.
It can be applied using a brush, trowel, or spraying equipment.
It is available in grey and white color options.
Yes. It provides effective protection against both positive and negative water pressure.
KÖSTER NB 2000 provides elastic, permanent, and high-performance waterproofing for concrete surfaces exposed to external factors or surfaces with crack formation risks.
