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Flexi-Corner Tape

Siegelt Flexi-Corner Tape is a durable three-layer TPE waterproofing tape engineered to seal corners, joints and transitions while resisting ageing, chemicals, water pressure and temperature extremes.
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  • Bathrooms and shower areas
  • Swimming pools and water-retaining structures
  • Balconies and terraces
  • Kitchens and utility areas
  • Internal and external corners
  • Wall-to-floor junctions
  • Wet-area transitions and joints
  • Residential and commercial waterproofing systems
  • Reliable Corner Protection: Creates a secure waterproof seal across corners, joints and vulnerable transitions.
  • High Flexibility: Easily adapts to internal corners, external corners and irregular surface configurations.
  • Excellent Tensile Strength: Withstands structural movement and environmental stress without compromising waterproofing performance.
  • Ageing Resistance: Maintains its flexibility and protective properties over prolonged periods.
  • Chemical Resistance: Resists exposure to chlorides, alkalis and commonly encountered chemicals.
  • Water-Pressure Resistance: Designed to perform under positive water pressure and high water loads.
  • Easy Installation: Enables quick, accurate and secure detailing around critical waterproofing areas.
  • Long-Term Assurance: Supported by a 10-year product warranty for dependable waterproofing performance.
  • Material Construction: Three-layer thermoplastic elastomer tape reinforced with polypropylene fleece on both sides
  • Temperature Resistance: –30°C to +90°C
  • Available Colours: Grey and blue
  • Performance Properties: High flexibility, tensile strength and resistance to ageing
  • Chemical Resistance: Resistant to chlorides, alkalis and commonly encountered chemicals
  • Custom Fitting: Can be cut and perforated according to installation requirements
  • Quality Certifications: ETA and abP certified
  • Emission Classification: EMICODE EC 1 PLUS
  • Manufacturing Standard: Manufactured in Europe using advanced waterproofing technology

Ensure the installation surface is clean, stable and free from dust, oil and loose particles.

Apply only C2-grade tile adhesive or a compatible MS polymer sealant to the prepared surface. Position the Flexi-Corner Tape carefully over the corner or joint and press it firmly into the adhesive.

Ensure that:

  • The tape is fully embedded without wrinkles or air pockets
  • Internal and external corners are completely covered
  • Overlaps and adjoining waterproofing components are securely sealed
  • The tape remains properly aligned throughout installation
  • The completed installation is inspected before applying tiles or protective finishes

Always follow the Siegelt Technical Data Sheet and recommended waterproofing-system guidelines for optimum performance.