
Soudal B3 hand-held expanding foam (750ml) for filling, sealing & insulating. CFC-free, fire class B3, -58dB acoustic rating. Buy online.
The Soudal B3 Gap Filler Expanding Foam (Champagne) is a professional-grade, single-component polyurethane foam supplied in a convenient 750ml hand-held can. This ready-to-use foam expands upon application to fill, seal, and insulate gaps and cavities with exceptional efficiency. It features CFC-free propellants, making it completely harmless to the ozone layer and an environmentally conscious choice for a wide range of construction and DIY tasks.
This versatile foam demonstrates excellent adhesion on most common building substrates, though it is not recommended for use on Teflon, polyethylene (PE), or polypropylene (PP). It provides a high level of thermal insulation, classified to fire class DIN 4102 B3, and offers significant acoustical insulation with a sound rating of -58 dB. Its key benefits include very good filling capacities, excellent mounting strength, and outstanding dimensional stability with no shrinkage or post-expansion after curing.
Primary Applications
With its robust 750ml volume, this Soudafoam B3 can tackles numerous jobs, from small repairs to larger insulation projects. The hand-held format allows for precise, controlled application directly from the can, making it a must-have for builders, installers, and serious DIY enthusiasts seeking reliable performance and superior results.
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