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Class A EPDM-Alternative

The World's first and only.



The OBEX CORTEX 0200FR Class A2 Interface Sealing Membrane is the first ‘EPDM-alternative’ to achieve a fire classification of A2-s1,d0. It also has full BBA approval.

This quality membrane is used in conjunction with OBEX CORTEX 0210FR Class A2 Paste Adhesive, making it the first and only Class A sealing system for windows and facades.

Water Resistance

CORTEX 0200FR is a highly water-resistant membrane.  It passes the water-tightness requirement of 2kPa of water for 24 hours when tested to EN13984.

WATERTIGHTNESSPass – 2kPa for 24 hours

Class A

CORTEX 0200FR has a fire classification of Class A2-s1,d0 when tested to EN13501-1, and as such, is the first window-sealing membrane to meet the requirements of Regulation 7, for buildings over 18 metres tall.


Technical Specification

Harmonised StandardEN 13984
Fire Classification
EN 13501-1
Tensile strength
EN 12311-1
MD 7767N/50mm
CD 3973 N/50mm
EN 1928
Pass – 2 kPa for 24 hours
Tear Strength (nail shank)
EN 12310-1
MD 519N
CD 436N
Air Tightness
EN 12114

Product Specification

Widths50 – 1500mm
3rd Party CertificationFull BBA Approval
Building Height SuitabilityRecommended for all buildings.
Mandatory for buildings taller than 11m
Related ProductOBEX CORTEX 0210FR
Class A2 Paste Adhesive


OBEX CORTEX 0200FR Class A Membrane is the world’s first, Class A façade sealing membrane that’s fully compliant with Regulation 7 and Approved Document B ;

“Building work shall be carried out so that materials which become part of an external wall, or specified attachment, of a relevant building are of European Classification A2-s1,d0 or A1”


We offer free-of-charge Site Support, Installation Training, QA Inspections & Certifications, and orders placed by 3pm will be dispatched for next working day delivery.

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