Soudal SWS Vario Extra Black Air and Watertight Membrane Tape 300mm x 30m

Product

SWS Vario Extra Black is a flexible, self-adhesive membrane designed for air and water-tight sealing around windows, doors, and panels. This versatile 300mm × 30m roll provides moisture-regulating protection suitable for both interior and exterior applications.

Specifications

• Full-surface self-adhesive technology with pressure-sensitive adhesion for secure bonding to structures
• Variable Sd value that adapts to seasonal temperature and humidity fluctuations
• UV resistant for up to 12 months with good temperature resistance (-40°C to 80°C)
• Split protective film design (2 or 3 parts depending on width) for easier installation
• Compliant with DIN 4108 (EnEv) requirements and RAL installation recommendations
• 1mm thickness with tear-resistant construction

Usage

Apply SWS Vario Extra Black before or after installing façade elements. Attach the printed side to the window profile using the built-in adhesive strip, then secure the fully adhesive reverse side to the structure. Install with slight slack to accommodate building movement, and use a pressure roller for optimal adhesion.

FAQ

1. What makes SWS Vario Extra Black unique? Its variable Sd value adapts to seasonal conditions, allowing moisture transport in either direction to keep connection joints dry year-round and prevent condensation damage.

2. Can it be used for both interior and exterior applications? Yes, this is a single solution for both interior and exterior applications, eliminating the need for different products.

3. Is it compatible with other finishing materials? Yes, it can be plastered or pasted over, making it versatile for various construction finishes.

4. How flexible is the installation? The functional interruption in the adhesive layer provides additional flexibility, allowing it to better absorb movement in connection joints and easily fold into corners.

5. What are the main applications? It's ideal for wall connections, window connections, interior and exterior frame faces, under window sills, solid interior and exterior walls, and ventilated exterior façades.

mvm-dt-2025-06-04