● Woodworking · Review

Bob Smith Industries BSI-139H Super-Gold Odorless Foam-Safe CA

Flexible after cure, reduces joint failure from vibration and thermal movement

✎ PickHonest Research Desk▦ Updated October 15, 2026◷ 3 min read

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Bob Smith Industries BSI-139H Super-Gold Odorless Foam-Safe CA
Best Foam Safe

Bob Smith Industries BSI-139H Super-Gold Odorless Foam-Safe CA

Bob Smith Industries

Flexible after cure, reduces joint failure from vibration and thermal movement

  • Foam-safe formula
  • Flexible when cured
  • Works on wood, foam, and composites
  • Gap-filling medium viscosity

Pros

  • Flexible after cure, reduces joint failure from vibration and thermal movement
  • Works on balsa, foam, and composite materials as well as hardwood
  • Medium viscosity handles small gaps without accelerator
  • Bob Smith Industries is the professional standard for model and woodturning CA

Cons

  • Flexible formula slightly lower tensile strength than rigid CA
  • Higher price than consumer super glues
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