Closed Cell Backing Rod - Round

High-quality closed cell backing rod, used for creating a watertight seal in construction joints. Made of durable, non-absorbent foam, this versatile product is designed to be inserted into joints before the application of sealants or caulking. Its unique closed-cell structure prevents the absorption of water, making it ideal for use in a wide range of applications. Whether you're sealing expansion joints in concrete, windows, or other building materials, our closed cell backing rod is the perfect solution to ensure a long-lasting, watertight seal.

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