wolfcraft Backer Rod Gap Filler - PE Foam Sealing Cord, 10 mm Diameter, 6 m Long, for Expansion Joint Widths of 5-8 mm, Round Cord Seal 4360000

Proper Joint Preparation: PE foam backer rod ensures correct two-flank adhesion when sealing expansion joints, preventing joint failure & saving sealant by backfilling deep gaps before application Right Fit, Every Time: With a 10 mm diameter, this foam sealing cord suits joint widths of 5–8 mm, compressing cleanly into the gap for a secure, professional-grade fit Reduces Sealant Consumption: By pre-filling deep joints with this gap filler cord, you use significantly less elastic sealant — reducing material waste and keeping project costs down Sound and Thermal Performance: The polyethylene foam construction provides heat and sound-absorbing properties, contributing to improved insulation in construction and renovation projects Easy to Handle and Install: At 6 m long and flexible enough to follow joint contours, this round sealing cord inserts smoothly without tearing, making installation straightforward for backfilling excessively deep joining and expansion gaps before sealing with elastic sealants material: polyethylene foam (PE) heat and sound-absorbing, water-resistant prevent three-point adhesion saves sealant, for joint widths from 5 - 8 mm