OBEX CORTEX 0500FR Class B Interface Sealing Membrane is a top-performing, fire-classified membrane that has been specifically designed for creating water and airtight seals around windows, doors, curtain walling systems, SFS sections to concrete frames, and balcony waterproofing.

This Interface Sealing Membrane has been approved by BBA, a third-party organization that ensures its quality and reliability. It achieves Class B-s3,d0 – EN 13501-1 fire classification, making it suitable for use on relevant buildings above 18m.

OBEX CORTEX 0500FR Class B Interface Sealing Membrane works seamlessly with OBEX CORTEX 0771FR Class B Paste Adhesive, together ensuring a robust, airtight seal between two substrates.

This membrane is perfect for a wide range of applications where a compliant fire-classified EPDM-alternative is required.


Typical Uses

Weather & airtight seals around windows, doors and curtain walling systems
Weather & airtight seals from SFS sections to the concrete frame
Top of parapet walls
Balcony waterproofing
Many other applications where a robust Class B EPDM-alternative is required
3rd Party Certified
Class B
EN 1928 - EN 13984 

Product Specs

Widths
50mm - 1500mm

Length
20m

Thickness
0.5mm

Technical Specs

Harmonised Standard |
EN 13984

Fire Classification | EN 13501-1
B-s3,d0

Watertightness | EN 1928
Pass – 2 kPa for 24 hours

Tensile Strength | EN 12311-2
2490 N/50mm - 2079 N/50mm

Air Tightness | EN 12114
<0.1m³

3rd Party Approved
BBA

Passive House Rating
A+

Data Sheets

Agrement Certificate

Decleration Of Performance

Installation Guide

Safety Data Sheet

Technical Data Sheet


'Installation Guide Video'



The above information is based on current test data, health and safety information and application instructions supplied by our suppliers and manufacturers of the products. It is supplied for guidance and to the best of our knowledge is true and accurate. Customers should satisfy themselves to the suitability of the products in its intended use and no guarantee is given or implied as the conditions of actual use are beyond our control. If in doubt the customer should consult the designer of the project or the local building control. 

Fire Stopping Shop, disclaim any liability for loss, damage or other expense which may arise from the use of this information, data or products refereed to and reserve the right to amend or change any details without notice. This statement does not affect your statuary rights.--