DOWSIL™ Membrane Dual is a high-performance EPDM membrane for use as a water vapor control layer in indoor and outdoor applications according to EN 13984.
The membrane is used for window installation, ventilated façades and curtain wall installation. It provides a weather and airtight seal for fenestration applications and can also be used to seal across adjacent building elements.
Technical information
Product: DOWSIL™ Membrane Dual
Type: EPDM membrane
Application: indoor and outdoor applications, window installation, ventilated façades, curtain wall installation
Composition: EPDM rubber
Colour: black
Length: 25 m
Widths: 100, 150, 200, 250, 300, 350, 1400 mm
Density: 1.38 g/cm³
Hardness: Shore A 68
Fire resistance: Class E
Water tightness: passed at 2 kPa
Storage: between +5 °C and +30 °C, in a dry place, protected from direct sunlight; up to 10 years
Complementary product :
DOWSIL™ 300 Adhesive is a one-part, elastic SMP adhesive for DOWSIL™ Membrane installation. It is used for bonding DOWSIL™ Membrane Dual and DOWSIL™ Membrane Outside 0.6 in window installation, ventilated façade and curtain wall installation applications.
What is the difference between DOWSIL™ Membrane Dual and DOWSIL™ Membrane Outside 0.6?
DOWSIL™ Membrane Dual can be used in indoor and outdoor applications and is available with higher sd values: 60 m, 100 m or 120 m. DOWSIL™ Membrane Outside 0.6 is a micro-perforated membrane for outdoor applications with a lower sd value of 9 m, making it more open to water vapor diffusion.
Need help selecting the right membrane?
Glasspro represents the DOW product portfolio and can help select the right membrane and bonding solution according to façade, window installation or curtain wall system requirements.
📩 Inquiry
For pricing, product availability, technical documentation and B2B supply across the EU and other export markets, please contact us.
📄Technical documentation
Download the product TDS / technical document for detailed technical information.