Home > Companies > Dow Silicones Belgium SPRL > DOWSIL™ Membrane Dual

High-performance ethylene propylene diene monomer (EPDM) membrane for use as water vapour control layer according to EN 13984. The membrane is available in a wide choice of widths which are bonded to substrates using DOWSIL™ Adhesive 300.

The membrane provides weather and airtight seal for fenestration application and can also be used to seal across adjacent building elements.

Features and benefits:

  • Good mechanical properties.
  • Flexible and tear-resistant.
  • Good movement capability, thus able to sustain thermal and structural movements of the building.
  • Resistant to ultraviolet (UV) light, temperature extremes, chemical pollutants and moisture.
  • Available in different widths to enable quick and easy installation.
  • High quality due to use of EPDM raw materials from Dow.

Applications:

Suitable for indoor and outdoor applications including:

  • Window installations
  • Ventilated facades.
  • Curtain wall installations.

Standard product features

Length:

25 m.

Colour:

Opaque, black, flexible membrane.

Technical characteristics:

  • Composition: EPDM rubber.
  • Water vapour resistance factor to EN 1931: 100 000 (µ-value).
  • Water vapour diffusion equivalent air layer thickness (sd value): 60, 100 or 120 m, product dependant.
  • Water tightness at 2 kPa to EN 1928: Passed.
  • Fire resistance to EN 13501-1: Class E.
  • Tensile strength to EN 12311-2 ≥5 MPa.
  • Elongation at break to EN 12311-2: ≥350%
  • Density to EN 1849-2/ ISO 2781: 1.38 g/cm³.
  • Shore A Hardness to ISO 7619: 68.
  • Nail tear strength to EN 13984: ≥25, ≥50 or ≥70 N, product dependant.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-65-50/363 Polymeric membranes

Product specification

An important note about specifying

Manufacturer

Name:

Dow Silicones Belgium SPRL

Tel:

+32 64 888 000

Product reference

DOWSIL™ Membrane Dual

Type

[DOWSIL™ Membrane Dual 0.6]
-
Thickness: 0.6 mm.
[DOWSIL™ Membrane Dual 1.0]
-
Thickness: 1.0 mm.
[DOWSIL™ Membrane Dual 1.2]
-
Thickness: 1.2 mm.

Width

[100 mm]
[150 mm]
[200 mm]
[250 mm]
[300 mm]
[350 mm]
[1400 mm]

Manufacturer details

Parc Industriel - Zone C,
Rue Jules Bordet,
Seneffe, B-7180,
Belgium
Tel +32 64 888 000
Fax +32 64 888 950
NBS Plus
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