Reliable joint backing performance
- Prevents three-point joint adhesion: You avoid detrimental three-sided adhesion by setting the correct joint depth for maximum sealant elasticity and longevity.
- Flexible open-cell foam structure: The 50 mm polyurethane foam compresses smoothly into expansion joints and maintains firm support during mastic application.
- Superior chemical resistance: This Soudal PU-voegvulling 50MM black withstands contact with standard building sealants including silicone, polyurethane, and acrylic mastics.
With the Soudal pu backing rod, you prepare wide construction and expansion joints for professional sealant application. This round profile with a 50 mm diameter and 1 m length prevents damaging three-sided adhesion while setting the correct joint depth. This ensures your elastic sealant retains full movement capability and reduces unnecessary sealant consumption in deep gaps. Made from open-cell polyurethane foam, it compresses smoothly into place and provides firm back pressure during tooling. With superior chemical resistance against silicone, polyurethane, and acrylic sealants, this backing rod provides a reliable foundation for long-lasting interior and exterior joint sealing.
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