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Koster Quellband Waterbar

Verified by manufacturer 1 month ago

Koster Aquatecnic Ltd Third party certifications:
  • ISO 9001 Quality Management

    Certificate type

A Sodium Bentonite based waterbar for sealing construction joints.

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Application

  • Developed for the sealing of construction joints in reinforced concrete Basement and Below Ground structures.
  • As a part of a Type B waterproofing system according to BS 8102 2022, can be specified with Koster BDM watertight concrete additive.
  • To ensure a continuous and effective water bar joints, the ends of the Koster Quellband should be spliced together of but jointed with an angled cut of both faces.
  • A minimum concrete cover of 80 mm is required either side of the waterbar.
  • Koster Quellband can be applied both vertically and horizontally.
  • Koster Quellband is advised to be mechanically fastened to the concrete rather than adhered using a mastic, thus ensuring a radial expansion.
  • All construction joints should be properly prepared prior to waterbar placement.
  • Waterbar to be protected from pooling/ponding water prior to concrete casting.


Description

Koster Quellband is a sodium bentonite based water swellable joint tape. It has an alkalinity activated surface coating which stops premature swelling of the tape on the building site.


Features and benefits:

  • Alkalinity activated - stops premature swelling on contact with water.
  • Easy application.
  • No special tools are needed.
  • Permanent seal of the joint after swelling - fills all voids and cracks in the concrete.
  • Easy to use, non-sticky surface even at high temperatures.
  • No material fatigue - swells even after years.


For further advice or information, please contact Technical@kosteruk.com and our CSSW certified staff will be pleased to assist.

General information

Color

Black

Finish

Matt

Material

Other

Guidance for specification option:

Sodium bentonite based.

Shape

Other

Length

5000 mm

Width

25 mm

Height

20 mm

Warranty description

Ten year

Uniclass

Pr_35_90_15_74 Rubber hydrophilic waterstopsPrimary

CAWS

E40/320 Hydrophilic waterstops

Specification data - Rubber hydrophilic waterstops

Cross section

20 x 25 mm.

Application temperature

5–30°C.

Flammability

To DIN 4102, Class B2.

Guidance for specification option:

Normally inflammable.

Density

1.81 g/cm³.

Expansion

Up to 500%.

Sustainability data

Contains Red List materials

No

Country of material origin

Germany

Country of product manufacture

Germany

Material

Other

Guidance for specification option:

Sodium bentonite based.

Recyclability

No

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

Expected Life

60 year

Third party certifications

ISO 9001 Quality Management

ISO 9001 Quality Management

Koster Bauchemie AG - ISO 9001 Certificate

Literature

Koster Waterproofing of Construction Joints

Koster Waterproofing of Construction Joints