M-D Building Products 718734 5/8x20 ft Gaps Backer Rod
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M-D Building Products

5/8x20 ft Gaps Backer Rod

Mfg.# 718734
Sku# 1036870

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  • Features
  • Specifications
Non-absorbent, closed-cell polyethylene pre-caulking material helps repel moisture. Use before caulking to fill gaps and openings larger than 1/2 in x 1/2 in Prevents 3-point bonding.