Duco USA-Made Acetal Copolymer Dowel Rod 1.25" dia x 36" vs 3/8 in x 300 ft foam backer rod for gaps and joints

Overall winner: 3/8 in x 300 ft foam backer rod for gaps and joints

Key Differences

Product A (zzhxkjhky Backer Rod) is a 3/8" foam rod sold in a long 300' length and is noted for flexibility and easy installation, making it better for filling long gaps and joints. Product B (Duco Acetal Copolymer Dowel) is a solid 1.25" x 36" machined dowel noted for USA-made durability and low-friction machinability, so pick B for rigid, durable machining applications and A for long runs of flexible gap-filling

3/8 in x 300 ft foam backer rod for gaps and joints

3/8 in x 300 ft foam backer rod for gaps and joints

zzhxkjhky • ★ 3.7/5 • Budget

Foam backer rod for filling gaps and joints; flexible, water-resistant foam that recovers after packing. Users note ease of use and good value, with mixed comments on durability

Pros

  • flexible and bendable
  • recovery after unpacking
  • easy to install
  • water-resistant foam

Cons

  • mixed quality and durability
  • some reports of mismatched size vs advertised
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Head-to-Head

CriteriaWinner
Price zzhxkjhky
Durability Duco Plastics & Supply
Versatility zzhxkjhky
User Reviews zzhxkjhky