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Expansion Joint Tape

Expansion Joint Tape

Siegelt Expansion Joint Tape is a flexible FPO waterproofing solution designed to create durable, watertight seals across movement joints and critical construction areas under demanding conditions.
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  • Expansion, construction and connection joints
  • Basements and foundations
  • Bridges, tunnels and culverts
  • Roofing and exposed waterproofing systems
  • Water tanks and reservoirs
  • Drainage ducts and conduit systems
  • Hydroelectric power plants
  • Sewage and wastewater treatment plants
  • Water-retaining structures
  • Drinking-water storage systems
  • High Flexibility: Accommodates structural movement, expansion and contraction without compromising the waterproof seal.
  • Reliable Waterproofing: Creates a durable barrier against water ingress across joints and critical transitions.
  • Chemical Resistance: Maintains performance when exposed to commonly encountered chemicals and aggressive environments.
  • Ageing Resistance: Preserves its flexibility and sealing properties during long-term use.
  • UV Resistance: Withstands prolonged exposure to sunlight in outdoor and roofing applications.
  • Root Resistance: Protects waterproofing systems against damage caused by root penetration.
  • Wide Application Versatility: Suitable for infrastructure, industrial, commercial and water-retaining projects.
  • Potable-Water Compatibility: Suitable for specified drinking-water reservoirs and water-storage applications.
  • Long-Term Performance: Engineered using advanced German technology for dependable protection in demanding environments.
  • Material: Flexible Polyolefin, also known as FPO
  • Joint Compatibility: Suitable for expansion, construction and connection joints
  • Movement Accommodation: Adapts to structural expansion, contraction and environmental movement
  • Chemical Resistance: Resistant to commonly encountered chemicals and aggressive substances
  • Environmental Resistance: Provides protection against ageing, ultraviolet exposure and root penetration
  • Temperature Performance: Designed to remain functional across varying climatic and temperature conditions
  • Waterproofing Performance: Creates watertight seals in continuously wet and water-retaining environments
  • Infrastructure Suitability: Designed for tunnels, bridges, culverts, foundations and industrial structures
  • Water-System Compatibility: Suitable for specified potable-water and wastewater applications

Ensure that the joint and surrounding substrate are clean, stable, dry and free from dust, oil, loose particles and surface contamination.

During installation:

  • Select the appropriate tape width based on the joint dimensions and expected movement
  • Position the tape evenly across the expansion or construction joint
  • Maintain sufficient slack over the joint to accommodate structural movement
  • Bond both edges firmly using the recommended compatible adhesive or approved bonding system
  • Avoid stretching the tape tightly across movement joints
  • Ensure all overlaps, junctions and terminations are securely sealed
  • Protect the installed tape from mechanical damage during subsequent construction work
  • Inspect the completed system before applying protective layers or finishes

Always follow the Siegelt Technical Data Sheet, project specifications and approved installation methodology for optimum waterproofing performance.