Everbuild Foam Sealant Joint Backer Rod 25mm x 10 Metre

Improved sealant performance by giving the correct joint size. Closed-cell polyurethane backer rod for use as a backer in expansion joint sealing to avoid three-sided adhesion. Quick and easy to apply, Reduces sealant usage. Saves filler and ensures good sound and heat insulation. Effective waterproof and sound insulation performance, super tightness, can be cut into suitable size according to need.