Soudal SWS Vario Extra Black Sealing Membrane 150mm x 30m

Product

Soudal SWS Vario Extra Black 150mm / 30m is a flexible, self-adhesive membrane designed to create airtight and rain-resistant seals around windows, doors, and panels. Suitable for both interior and exterior frame joints, it effectively regulates moisture and prevents condensation.

Specifications

• Full-surface self-adhesive membrane with an additional pressure-sensitive strip for window profile mounting
• Made from non-woven synthetic fleece; thickness: 1 mm
• Variable Sd value for moisture regulation; adapts to changing humidity and temperature to prevent condensation
• Air- and watertight; tested resistance up to 1050 Pa driving rain
• Temperature resistance: -40°C to 80°C; application temperature: -5°C to 45°C
• UV resistant for up to 12 months
• Flexible, tear-resistant, and easy to mold around corners
• Suitable for plastering and painting over; available in rolls of 30 meters
• Compliant with DIN 4108 and RAL installation guidelines

Usage

Apply SWS Vario Extra Black to seal both interior and exterior connection joints around windows, doors, and structural panels. The membrane’s adhesive layers enable easy installation on window profiles and building structures. It can be installed before or after façade elements and is adaptable for corners and complex joints, maintaining flexibility to accommodate structural movement.

FAQ

1. Where can the SWS Vario Extra Black be used?
   It is designed for both interior and exterior sealing of window, door, and wall connections, including ventilated facades and under sills.

2. How does the membrane prevent condensation?
   The variable Sd value allows vapor transport in both directions, ensuring joints remain dry throughout the year by adapting to seasonal humidity and temperature changes.

3. Is the product suitable for outdoor exposure?
   Yes, it is UV resistant for up to 12 months, making it reliable for temporary outdoor exposure before façade cladding is applied.

4. Can it be plastered or painted over?
   Yes, the membrane is compatible with plaster and paint, making it suitable for concealed installation in a variety of wall systems.

5. How should the membrane be installed in corners?
   The flexible material and split protective film allow for easy folding and adaptation in corners. Extra material (about 5–10 cm per corner) should be provided for optimal sealing.

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