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B2 Elastic Airtight Foam – Flexible PU Foam
The B2 Elastic Airtight Foam is a product of the ARBOPROTECT Pro® category and is used as a flexible, airtight polyurethane foam for sealing joints and connections. It is suitable for applications involving movement and airtight façade construction.
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Unique properties of B2 Elastic Air-Tight Foam
B2 Elastic Air-Tight Foam is designed for flexible and airtight sealing applications, combining movement capability with insulation performance. It supports modern façade systems requiring durability and airtightness.
Provides flexible sealing for joints, including movable and pressure-sensitive connections
Forms an airtight seal to reduce air leakage in building envelopes
Suitable for installation of window and door frames
Contributes to thermal and acoustic insulation in construction
Helps reduce the impact of thermal bridges
Offers near-zero curing pressure to minimise deformation of building elements
Designed with low expansion for controlled application
Adheres well to most typical construction materials
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Main Applications
ARBOPROTECT Pro® B2 Elastic Air-Tight Foam is used for flexible sealing, airtightness and insulation in façade and general construction applications.
Window Installation
Used for installing window and door frames while providing airtight sealing and accommodating movement at connection joints.
Movable Joints
Suitable for sealing joints subject to movement or pressure, maintaining performance without cracking or separation.
Penetration Sealing
Provides insulation and airtight sealing around penetrations in building elements to improve envelope performance.
Insulation Connections
Used for sealing insulation boards and construction joints, helping reduce thermal bridging and improve overall efficiency
Technical Specifications & Downloads
Downloads
ARBOPROTECT Pro B2 Elastic Airtight Foam TDS (PDF)
Frequently Asked Questions
The B2 Elastic Air-Tight Foam is designed for applications requiring flexible and airtight sealing while maintaining insulation performance. It accommodates joint movement and provides reliable adhesion across common construction substrates, making it suitable for façade and airtight construction systems.
Key benefits include: flexible sealing for moving joints; airtight performance; thermal and acoustic insulation contribution; low expansion for controlled application; reduced deformation risk; adhesion to common construction materials; support in minimising thermal bridges
ARBOPROTECT Pro® products provide weathertight, airtight and durable sealing solutions for façade openings, window and door frames, cavity walls, glazing systems and structural glazing fabrications. The range covers EPDM membranes, foam tapes, butyl strips and structural spacer tapes for both site and modular off-site construction applications.
ARBOPROTECT Pro® EPDM membranes have an expected service life of up to 50 years under normal conditions. Foam tape and butyl strip products carry a service life of 20 years or more. All products should be stored in original packaging in a dry, cool environment away from direct sunlight. ARBOPROTECT Pro® EPDM membranes have an expected service life of up to 50 years under normal conditions. Foam tape and butyl strip products carry a service life of 20 years or more. All products should be stored in original packaging in a dry, cool environment away from direct sunlight.
Yes. ARBOPROTECT Pro® EPDM-based products are solvent-free and compatible with sensitive substrates including natural stone, paint finishes, glass and concrete. They do not affect solvent-sensitive paint finishes and are compatible with the full range of ARBO® adhesives and sealants.
ARBO® Technical Services provides guidance on product selection, substrate preparation, primer requirements and correct installation methods for the ARBOPROTECT Pro® range. Direct contact is available via ARBO® Technical Services for project-specific advice on substrate compatibility and application.
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Find your contacts
Regardless of whether you are an architect and planner, property developer, industry specialist, distributor, applicator or specifier – if you have any questions about our products, services or specific construction projects, please feel free to contact the CARLISLE® contact person in your area with your technical questions. Our experts will be happy to advise you.
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