SKU ed47280-I
The foam backer rod is a flexible cylindrical filler designed to be inserted into joints and gaps to provide a backing for sealants. Its round foam composition allows it to compress for tight fit while maintaining enough firmness to support the sealant and prevent excessive squeeze back. It performs well under water exposure and temperature changes, helping sealants cure evenly and maintain adhesion over time. The material can be cut to length with scissors or blades and can be twisted with additional strands to accommodate larger openings. When preparing a joint, clean the area first, insert the backer rod evenly and firmly to the desired depth, then apply the sealant over the rod and smooth it for a uniform finish. The rod is useful in expansion joints in driveways and sidewalks, as well as cracks in wood and walls, and gaps around doors and windows. It is applicable to pavement joints and can help seal windows during cold weather. Beyond construction, it supports a range of non-structural tasks and simple hand craft projects. By choosing appropriate sizes and lengths, you can minimize filler usage while achieving consistent results across different applications. Proper storage and handling help maintain the foam's resilience and ease of cleanup.
