0500FR

ISM (Interface Sealing Membrane)

Class B – EN 13501-1

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. Read more

  • 3rd Party Certified 3rd Party Certified
  • Class B Class B
  • EN 1928 - EN 13984 EN 1928 - EN 13984
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Full Product Description

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

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

Passivhaus

A+

Downloads

OBEX CORTEX 0500FR Interface Sealing Membrane Class B Installation Guide

Product Order Codes

Product CodesProduct DescriptionWidthLengthBox Quantity
20.0500.001OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d050mm20m1
20.0500.008OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0100mm20m1
20.0500.016OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0150mm20m1
20.0500.023OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0200mm20m1
20.0500.029OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0250mm20m1
20.0500.035OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0300mm20m1
20.0500.042OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0350mm20m1
20.0500.046OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0400mm20m1
20.0500.049OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0450mm20m1
20.0500.051OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0500mm20m1
20.0500.054OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0550mm20m1
20.0500.058OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0600mm20m1
20.0500.061OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0650mm20m1
20.0500.064OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0700mm20m1
20.0500.065OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0750mm20m1
20.0500.067OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0800mm20m1
20.0500.068OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0850mm20m1
20.0500.069OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0900mm20m1
20.0500.071OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d0950mm20m1
20.0500.072OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01000mm20m1
20.0500.094 OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01050mm20m1
20.0500.073OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01100mm20m1
20.0500.074OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01150mm20m1
20.0500.075OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01200mm20m1
20.0500.076OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01250mm20m1
20.0500.077OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01300mm20m1
20.0500.078OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01350mm20m1
20.0500.079OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01400mm20m1
20.0500.080OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01450mm20m1
20.0500.081OBEX CORTEX 0500FR Interface Sealing Membrane - Class B-s3,d01500mm20m1

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