Geobit Closed-Cell Backer Rod
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Product description
The Geobit Closed-Cell Backer Rod is an essential component for professional joint sealing in construction and infrastructure projects. Manufactured from high-density closed-cell polyurethane foam, this backer rod is designed to maintain its shape under compression and resist moisture absorption, ensuring long-term performance in demanding environments.
Its primary function is to fill the depth of expansion and contraction joints, creating a controlled depth for the sealant. This prevents the sealant from adhering to the bottom of the joint, allowing it to move freely with the structure's thermal expansion and contraction. By ensuring a 2:1 ratio of width to depth, the backer rod maximizes the efficiency and lifespan of the sealing system.
Key Features & Applications
- Controlled Sealant Depth: Ensures optimal sealant application by preventing contact with the joint substrate.
- Moisture Resistance: Closed-cell structure prevents water absorption, maintaining structural integrity.
- Thermal Stability: Retains dimensional stability across a wide range of temperatures.
- Compatibility: Compatible with various sealants including silicone, polyurethane, and polysulfide.
- Applications: Ideal for concrete expansion joints, façade joints, bridge decks, and industrial flooring.
