DK Hardware 2026-09-30 - 18:09:38

Technical Team

No, the Nomaco 337-91-1500-1 HBR Closed-Cell Polyethylene Backer Rod is made from closed-cell polyethylene foam, which inherently has very low moisture absorption. This property helps prevent water from compromising the sealant and the joint.

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337-91-1500-1 Nomaco 337-91-1500-1 1-1/2" x 6 ft HBR Closed-Cell Polyethylene Backer Rod

$5.30/Each

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Does the Nomaco HBR backer rod absorb water?

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