Illbruck ME508 Duo Membrane EW/F

ME508 is a non-woven fleece laminate which is self adhesive across the full width of the membrane for optimised adhesion. The combination of self-adhesives provide options for installing to the window frame edge or face.


Used for sealing window connection joints, particularly where wet plaster will be applied.

Strong and reliable self-adhesive, allowing bonding to virtually any substrate (eg masonry, concrete, PVC, metal, wood, and all usual insulation materials (EPS, XPS, PUR rigid foam), making application fast and simple.

Suitable for internal and external use due to variable sd, however, ideally used internally as an airtight seal in combination with ME501 Duo Window Membrane HD as an external weather tight seal.

Complies with the “inside tighter than outside” principle in order to facilitate moisture and vapour control.


Quick and easy application with split release liner
Intelligent membrane and adhesive allows for perfect moisture control inside or out
Suitable for retrofit
Initial repositioning possible, bond strength increases over time
Airtight (EN 1026 Test)
No loose membrane, can be directly plastered to without cracking

illbruck ME508 Duo EW/F is supplied in a dual format for convenience of application depending on the installation type, both “E” Format and “W” Format:

“E” format is applied to the internal face of the glazed unit using the single self-adhesive strip 20 mm wide situated on the fully self-adhesive backed face of the membrane – To download “E” Format Application Guideline Click Here

“W” format utilises the 20 mm self-adhesive strip on the front (printed) face of the membrane which is pre-adhered to the window frame perimeter prior to the window being plumbed and fixed into the opening – To download “W” Format Application Guideline Click Here

Usage Guidelines:

Fully self-adhesive
Humidity variable non-woven composite membrane with split release liner
Intelligent adhesive allows for perfect moisture control
Easy to apply with facility to reposition
Can be plastered or overpainted



ECT Adhesive Solutions, Unit 5, Willsborough Industrial Estate, Clonshaugh Business and Technology Park, Dublin 17, Ireland

+353 1 885 0000