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What is the primary purpose of this backer rod in construction?

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Construction Tapes, Sealants and Adhesives
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DK Hardware 2026-09-30 - 18:09:37
Technical Team

The Nomaco 337-91-2000-1 HBR Closed-Cell Polyethylene Backer Rod acts as a barrier in concrete construction, limiting the depth of cold-applied sealant and helping it achieve an optimal hourglass shape for extended service life.

Product Details

2" x 6 ft HBR Closed-Cell Polyethylene Backer Rod
337-91-2000-1Nomaco 337-91-2000-1 2" x 6 ft HBR Closed-Cell Polyethylene Backer Rod
$7.90/Each

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