Paste Adhesive

Class B – EN 13501-1

OBEX CORTEX 0771FR Class B Paste Adhesive is a high-performance membrane adhesive designed to create an airtight and weatherproof seal in construction interfaces. It is a moisture-curing, solvent-free adhesive that is specifically formulated to work seamlessly with OBEX CORTEX 0500FR Interface Sealing Membrane in through-wall construction and other interface sealing scenarios.

One of the standout features of this adhesive is its fire classification. It has achieved B-s1,d0 when tested to EN 13501-1 in isolation, making it the safe choice for relevant buildings above 11 metres.

OBEX CORTEX 0771FR Class B Paste Adhesive also has excellent UV resistance, making it a reliable option for outdoor construction projects. It can be easily applied, exhibits high adhesion levels, and is compatible with most common building substrates.

The adhesive has also been certified by BBA, ensuring its quality and reliability. With its outstanding features and certifications, OBEX CORTEX 0771FR Class B Paste Adhesive is a top choice for construction professionals seeking a high-performance, fire-classified adhesive for their interface sealing requirements.

Typical Uses

  • For creating a weather and airtight seal when bonding OBEX CORTEX 0500FR Class B Interface Sealing Membrane.

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  • 3rd Party Certified 3rd Party Certified
  • Class B Class B
  • Solvent Free Solvent Free
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Product Specs



Box Quantity

12 tubes

Technical Specs

Fire Classification | EN 13501-1


3rd Party Approved

BBA Approval – No. 17/5396

Application Temperature

5°C to 40°C

Product Order Codes

Product CodesProduct DescriptionSizeBox Quantity
20.0771.001OBEX CORTEX 0771FR Paste Adhesive - Class B-s1,d0600ml12

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