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Koster NB1 Grey Cementitious Sealing Slurry

Verified by manufacturer 3 months ago

Koster Aquatecnic Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • EPD

    EPD

    Certificate type

A mineral based, sulfate resistant crystalline slurry for waterproofing against negative and positive side pressure.

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Application

Koster NB1 Grey is suitable for use in, but not limited to the following areas:

  • Application to any mineral surface i.e., concrete, pre-cast, block, brick, masonry, stone, etc.
  • Waterproofing against ground moisture, non-pressurized and pressurized water.
  • For both new build and refurbishment projects.
  • As a part of a Type A waterproofing system, as per BS 8102 2022.
  • In the refurbishment of civil structures such as tanks, pipes, silos, manholes, tunnels, bridges and drinking water tanks.
  • For the waterproofing of pile heads and through construction joints.

Description

Koster NB1 Grey is a mineral coating which contains crystallising and capillary-plugging agents. 


Features and Benefits:

  • Resistant to 13 bar water pressure.
  • Excellent chemical and sulfate resistance.
  • Extremely high resistance to pressure and abrasion.
  • Self healing over micro cracks.
  • Flexible Type A waterproofing coating.
  • For negative side and positive side waterproofing.
  • Open to vapour diffusion.
  • No VOCs or corrosive ingredients.
  • Can be used on all mineral substrates.
  • Easy to apply, seamless application.
  • Inhibits salt movement in the substrate when used as a system together with Koster Polysil TG 500.


For further technical advice and project specific guidance, please contact technical@kosteruk.com.

General information

Color

Grey

Finish

Brushed

Smooth

Material

Cement

Manufacturer guidance

Cementitious slurry

Shape

Formless

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Ten year

Uniclass

Pr_20_31_53_18 Crystallization active slurry mortarsPrimary

CAWS

J10/130 Proprietary crystallization active mortar

Product range

External Basement Waterproofing Systems
Internal Basement Waterproofing Systems

Specification data - Crystallization active slurry mortars

Third-party product certification

BBA certificate.

Coverage

2–4 kg/m².

Setting time

Resistant to foot traffic after one day; Full cure after two weeks (approximately).

CompressiveStrength

> 30 N/mm² at 28 days.

Tensile Adhesion

≥ 0.5 MPa.

Sustainability data

Contains Red List materials

No

Country of material origin

Germany

Country of product manufacture

Germany

Recyclability

No

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

EPD

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

BBA Certificate for Koster NB1 Grey

EPD

Koster NB1 Grey Environmental Product Declaration

Literature

Koster Negative Side Waterproofing Brochure

Koster Negative Side Waterproofing Brochure

Koster Waterproofing Systems Company Brochure

Koster Waterproofing Systems Company Brochure

Koster Waterproofing Systems: The Green Pages of Waterproofing and Construction Chemicals

Koster Waterproofing Systems: The Green Pages of Waterproofing and Construction Chemicals

Koster System Advice Sheet - Koster VAPLite System

Koster System Advice Sheet - Koster VAPLite System

Koster External Basement Waterproofing Brochure

Koster External Basement Waterproofing Brochure

Case studies

Koster Injection G4 - London Underground

Koster Injection G4 - London Underground

Restoration of the foundations at a wind energy plant

Restoration of the foundations at a wind energy plant

Waterproofing to domes on Historic Building

Waterproofing to domes on Historic Building

Park Plaza Hotel in London

Park Plaza Hotel in London

Aintree Racecourse - Koster Flooring Systems to Grandstand

Aintree Racecourse - Koster Flooring Systems to Grandstand