With the Soudal pu backer rod, you ensure professional joint preparation and sealing for expansion and construction joints. This flexible round profile made of open-cell polyurethane foam prevents three-sided adhesion, allowing elastic sealants to expand and contract freely without cracking. Featuring a 15 mm diameter and a length of 1 m, it easily presses into roughly 10 mm wide joints, setting the correct depth while significantly reducing sealant usage. Highly resistant to silicone, polyurethane, polysulfide, and acrylic sealants, this versatile profile can also be used as a practical draught excluder.
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