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What does 'closed cell' mean for the performance of this backer rod?

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DK Hardware 2026-09-30 - 18:07:07
Technical Team

The 'closed cell' designation for the Brixwell RB114-CCP20 Backer Rod means its internal structure consists of individual, sealed cells. This prevents water absorption, making it highly resistant to moisture and ideal for applications where water penetration is a concern.

Product Details

1-1/4" Closed Cell Polyethylene Foam Backer Rod 20 Feet Gray
RB114-CCP20Brixwell RB114-CCP20 1-1/4" Closed Cell Polyethylene Foam Backer Rod 20 Feet Gray
$13.16/Roll

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