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Joint foam B1

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Joint foam B1

1-component polyurethane foam for applications with building material class B1 requirements

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Available in 1 version

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Exclusively for trade customers

Register now and access more than 125,000 products

Call customer service: +49 7940 15-2400

Prices for customers after login


General construction permit, complies with building material class B1 in accordance with DIN 4102, Part 1

For universal use

  • Suitable for a range of indoor and outdoor applications

  • Excellent adhesion on nearly all structural substrates

  • Once hardened, can be plastered over, painted and glued

  • Resistant to ageing, non-rotting, mould-resistant, but not UV-resistant

Excellent dimensional stability and rapid hardening

  • No volume shrinkage

  • Minimal post-expansion once the product has fully hardened

Excellent filling volume



Hardened polyurethane foam should be protected against UV exposure by painting over or sealing with e.g. silicone, polyurethane, acrylic or hybrid polymer, or by covering. Primer should be applied to porous and absorbent substrates. Joint foam B1 can be used in the PURlogic Xpress, art. no. 0891 152 4 foam guns. Other guns are not compatible!

The usage instructions are recommendations based on the tests we have conducted and based on our experience; carry out your own tests before each application. Due to the large number of applications and storage and processing conditions, we do not assume any liability for a specific application result. Insofar as our free customer service provides technical information or acts as an advisory service, no responsibility is assumed by this service except where the advice or information given falls within the scope of our specified, contractually agreed service or the advisor was acting deliberately. We guarantee consistent quality of our products. We reserve the right to make technical changes and further develop products.