Soudal SWS Vario Extra Black Air and Watertight Membrane 200mm x 30m

Product

The Soudal SWS Vario Extra Black 200mm x 30m is a flexible, self-adhesive air- and rain-tight membrane designed for moisture-regulating sealing around windows, doors, and façade panels. Suitable for both interior and exterior use, it ensures efficient, durable joint protection in construction and renovation work.

Specifications

• Full-surface self-adhesive membrane made of non-woven synthetic fleece with a variable Sd value for optimal humidity control
• Air- and watertight, protecting joints from both driving rain and air leakage
• Variable Sd value adapts to seasonal temperature and humidity changes, supporting year-round moisture transport and minimizing condensation risk
• Pressure-sensitive adhesive layer for strong attachment to various structures, with an additional adhesive strip for quick installation on window or door profiles
• Suitable for both indoor and outdoor use with a single product
• 200 mm width, 30 m roll length, approximately 1 mm thickness
• Resistant to UV rays up to 12 months and temperature from -40 °C to 80 °C
• Flexible, easy to fold around corners, tear-resistant, and compatible with plastering or painting
• Meets DIN 4108 (EnEv) requirements and RAL installation recommendations

Usage

Apply the membrane to window or door connections by pressing the adhesive side onto the substrate. Use the dedicated adhesive strip for rapid placement on profiles. SWS Vario Extra Black can be fitted before or after frame installation, works in corners, and compensates for structural movement without tearing. Apply with a pressure roller for maximum adhesion.

FAQ

1. What are the main benefits of using SWS Vario Extra Black?
   It provides air and rain tightness, regulates humidity, prevents condensation damage, and fits both interior and exterior applications with high flexibility.

2. Can the membrane be exposed to direct sunlight?
   Yes, it is UV-resistant for up to 12 months, making it suitable for pre-insulation or exposed applications before façade completion.

3. Does this product comply with building regulations?
   Yes, it meets DIN 4108 (EnEv) and RAL mounting standards for energy efficiency and construction quality.

4. How should SWS Vario Extra Black be installed?
   Unroll the membrane, remove the protective film, and press it into place on the structure and profile. Ensure proper alignment and use a roller to enhance adhesion.

5. Is the membrane suitable for both new builds and renovations?
   Yes, its design allows use in new construction, renovation, and when upgrading window or façade installations.

_{^{mvm-dt-2025-07-07}}