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Hydrophilic Swell Bar (TPE)

Siegelt Hydrophilic Swell Bar is a TPE-based waterproofing profile that expands up to 300% on water contact, creating a durable seal within concrete joints and penetrations.
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  • Concrete construction joints
  • Precast concrete segments
  • Basements and foundations
  • Shafts and retaining structures
  • Pipe penetrations through concrete
  • Water tanks and reservoirs
  • Tunnels and underground structures
  • Areas exposed to hydrostatic pressure
  • Civil, commercial and industrial concrete projects
  • High Swelling Capacity: Expands up to 300% upon contact with water to fill gaps, pores and irregularities.
  • Reliable Joint Sealing: Creates an effective barrier against water penetration through concrete construction joints.
  • Permanent Water Resistance: Maintains sealing performance during continuous or intermittent water exposure.
  • Hydrostatic Pressure Protection: Suitable for structures exposed to varying levels of water pressure.
  • Non-Leaching Performance: Retains its functional properties without releasing harmful substances into surrounding areas.
  • Environmentally Responsible: Provides a non-polluting waterproofing solution for modern construction requirements.
  • Easy Application: Supports quick installation, reducing application time and labour requirements.
  • Long-Term Assurance: Supported by a 10-year warranty for dependable waterproofing performance.
  • Material Technology: Thermoplastic elastomer incorporating hydrophilic polymer technology
  • Swelling Capacity: Expands up to 300% when exposed to water
  • Sealing Mechanism: Fills voids, gaps and pores within concrete joints through controlled expansion
  • Water Resistance: Suitable for continuous and intermittent water exposure
  • Pressure Performance: Designed for applications exposed to hydrostatic pressure
  • Environmental Performance: Non-polluting and resistant to leaching
  • Quality Management: Manufactured in compliance with DIN EN ISO 9001:2015 standards
  • Warranty: 10 years
  • Application Method: Designed for convenient installation within concrete joint systems

Ensure the concrete surface is clean, stable and free from dust, loose particles, oil, standing water and surface contamination.

During installation:

  • Position the swell bar centrally within the concrete construction joint
  • Ensure continuous contact with the prepared substrate
  • Secure the bar using the recommended adhesive or mechanical fixing method
  • Join adjoining sections tightly without leaving open gaps
  • Avoid overstretching, twisting or damaging the profile
  • Maintain adequate concrete cover around the installed swell bar
  • Keep the product protected from rain and premature water exposure before concrete placement
  • Carefully compact the surrounding concrete to prevent voids or honeycombing
  • Inspect the complete installation before the next concrete pour

Always follow the Siegelt Technical Data Sheet, approved joint design and project-specific installation requirements for optimum sealing performance.