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Application

Suitable for use in waterproof construction joints and pipe inlets in concrete structures exposed to permanent or temporary hydrostatic pressure.

Description

Drybase Waterbar consists of a hydrophilic acrylate based swelling substance, embedded in a butylene copolymer based thermoplastic elastomer, with reversible swelling properties.

After contact with water, the product swells up to 900% in volume. The pressure of the swelling action will cause it to expand in the joints, filling all cavities and thereby stop the water flow. Reversible expansive properties, dimension remains stable. The waterbar does not entrain water through its structure. The swelling process is limited to the water contact surfaces.

Features and benefits:

  • Highly flexible, easy application.
  • Resistant to water pressure up to 2 bar.
  • Also suitable for zones with tidal water movement.
  • Suitable for contact with sea water.
  • Temporary swelling protection in case of premature water contact.
  • The swelling process is reversible.

Applications:

Suitable for use in waterproof construction joints and pipe inlets in concrete structures exposed to permanent or temporary hydrostatic pressure.

General information
Uniclass 2015
Pr_35_90_15_86 Synthetic elastomer hydrophilic waterstopsPrimary
CAWS

E40/320 Hydrophilic waterstops

Specification data - Synthetic elastomer hydrophilic waterstops
Product Reference

Drybase Waterbar

Type

2005

Size: 20 x 5 mm. Weight: 127 g/m.

2010

Size: 20 x 10 mm. Weight: 249 g/m.

Standard product features

Technical characteristics:

  • Material: Hydrophilic polymer substance (embedded in polymer and elastomer).
  • Colour: White.
  • Density at 23°C: 1.27 kg/dm³.
  • Tensile strength after swelling: 0.7 MPa.
  • Elongation at rupture before swelling: 300%.
  • Swelling capacity highly alkaline environment: ≥350% by volume.
  • Application temperature: –30 up to +60°C.

Third party certifications
  • German (Allgemeines Bauaufsichtliches Prüfzeugnis) AbP: General Building Supervisory Test Certificate
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