Perfectly crafted for enhancing the durability of your construction projects, this high-quality caulk backer rod is an essential tool for sealing joints in driveways and sidewalks. The 1/2 inch diameter and 20-foot length ensure an effective and long-lasting application. Made from resilient gray polyethylene, it provides excellent support, preventing caulking from sagging or cracking over time, ensuring a smooth, professional finish every time.
