Soudal SWS Vario Extra Black 100mm Air and Watertight Membrane for Interior and Exterior Use 30m

Product

The Soudal SWS Vario Extra Black 100mm / 30m is a flexible, air- and driving rain-tight sealing membrane designed for both interior and exterior use. Applied around windows, doors, and panels, it features an innovative structure for seasonal humidity regulation in construction joints.

Specifications

• Full-surface, pressure-sensitive self-adhesive layer on one side with an additional adhesive strip for window profiles
• Made from non-woven synthetic fleece, engineered for high flexibility and tear resistance
• Variable Sd value for moisture regulation, adapting to temperature and humidity fluctuations
• Maintains air and watertight seals, prevents condensation-related damage
• UV resistant up to 12 months; suitable for plastering and gluing
• Temperature resistance from -40 °C to 80 °C; application temperature range: -5 °C to 45 °C
• Complies with DIN 4108 (EnEv) and RAL installation guidelines
• Roll length: 30 m; width: 100 mm; thickness: approximately 1 mm
• Easy-to-fold in corners; available with 2- or 3-part protective liner depending on width

Usage

To install, remove part of the protective liner and press the adhesive (printed) side onto the window profile or façade. Apply with moderate tension to allow for construction movements, using a pressure roller for optimal adhesion. Suitable for use both before and after mounting façade elements and can be applied as a single strip or as separate sections. Excess material (5–10 cm) should be allowed for corners.

FAQ

1. Is this membrane suitable for both indoor and outdoor use?
   Yes, it is designed for application on both the interior and exterior sides of building elements.

2. How does the membrane manage moisture and condensation?
   Its variable Sd value adapts to changing humidity and temperature, enabling moisture to move outward or inward as needed, which helps keep joints dry throughout the year.

3. Can the membrane be exposed to UV light during installation?
   It is resistant to UV exposure for up to 12 months, allowing for flexibility during construction phases.

4. Is the membrane compatible with plaster or adhesives?
   Yes, it can be plastered or glued over without losing its functionality.

5. What is the recommended application temperature?
   The membrane should be applied when both the product and substrate temperatures are between -5 °C and 45 °C.

mvm-dt-2025-07-07