Caulk Backer Rod, Twenty Feet Length By Three Eighths Inch Diameter

Introducing the 3/8 inch x 20 feet caulk backer rod, now available at Klem's in Spencer, MA. This high-quality pre-caulking material is designed to provide an effective solution for filling gaps and joints before applying caulk. Ideal for use in various sealing projects, the backer rod helps ensure a professional finish by preparing openings larger than 12 inches by 12 inches for caulking.

• Optimal size: Measures 3/8 inch in diameter and 20 feet in length, suitable for a wide range of gap sizes.


• Non-absorbent closed cell polyethylene: Made from durable closed cell polyethylene that resists moisture absorption, enhancing the longevity of your seal.


• Pre-caulking material: Designed to be used before caulking to fill gaps and openings, providing a stable base for caulk application.


• Prevents three point bonding: Helps avoid adhesion on three sides, which can cause sealant failure, ensuring a more flexible and durable seal.


• Ideal for larger gaps: Specifically recommended for filling gaps and openings larger than 12 inches by 12 inches, making it perfect for substantial joints.

Customers in Spencer will find this caulk backer rod invaluable for a variety of projects, from sealing expansion joints in concrete to filling gaps around windows and doors. Whether you are a professional contractor or a DIY enthusiast, this backer rod helps improve the performance and appearance of your caulking jobs. It can be used in both residential and commercial applications to ensure that sealants adhere properly and last longer.



Imagine preparing your surfaces with this backer rod to achieve smooth, clean, and durable seals that protect against water intrusion and air leaks. Its closed cell polyethylene construction makes it resistant to moisture, which is essential for maintaining the integrity of your seals in Spencer's varying weather conditions.



In summary, the 3/8 inch x 20 feet caulk backer rod is an essential tool for anyone looking to enhance their sealing projects in Spencer, MA. Available at Klem's, this backer rod ensures proper gap filling and prevents common caulking issues, helping you achieve professional results every time.