Foam Backer Rod - 1-1/2" x 420'
- Brand Name: GLENROCK COMPANY
- Sku Number: 810000
- Unit of Measure: BX
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Product Description
Backer rods are inserted into joints or cracks before sealant or caulk is applied, acting as a "bond breaker" to prevent the sealant from adhering to the sides and bottom of the joint, which can lead to sealant cracking or shrinking
1-1/2" wide by 420' long
- Prevents three-sided adhesion: By preventing the sealant from adhering to all three sides of the joint, backer rods ensure the sealant can move freely and maintain a flexible seal.
- Controls sealant depth: They help ensure the sealant forms the correct shape and depth, preventing excessive sealant use and ensuring a good seal.
- Reduces caulk waste: By filling the space in the joint, backer rods reduce the amount of sealant needed.
- Provides a stable caulking surface: They create a stable surface for the sealant to adhere to, ensuring a good seal.
