Description:

Package Content: Contains 1 roll foam backer rod with a diameter of 18mm/0.71inch and a total length of 3m/10 Ft.. Durable Foam Material: These foam backer rods are made of pearl cotton for excellent resistance to moisture, chemicals, and weather. This closed-cell structural material ensures long-lasting performance under various conditions, prevents water penetration, and provides reliable support for sealants.. Flexible and Compressible Design: This foam strip features a highly flexible and compressible design, enabling it to snugly fit into cracks, gaps, and expansion joints of all shapes and sizes. Its circular rope construction simplifies installation, facilitates insertion and bonding, and provides a strong backing surface for caulking, reducing material waste during the project.. How to Use: The foam filling strip is simple to use and requires no special tools; Simply measure the gap, cut it to your desired length, then press it into the clean, dry gap so that it fills the gap, creating a smooth surface.. Wide Application: This versatile support bar is suitable for a variety of indoor and outdoor applications, including sealing gaps around windows and doors, filling expansion joints in concrete driveways, and gap repair in pipes and conduits..