● Woodworking · Review

Loctite 40140 401 Prism Surface Insensitive Instant Adhesive

One caveat, higher price than consumer alternatives.

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

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Loctite 40140 401 Prism Surface Insensitive Instant Adhesive
Best Industrial

Loctite 40140 401 Prism Surface Insensitive Instant Adhesive

Loctite

One caveat, higher price than consumer alternatives.

  • Industrial ethyl cyanoacrylate
  • Low viscosity
  • Fast cure: 5–15 seconds on wood
  • High purity formula

Pros

  • Industrial purity produces more consistent cure strength than consumer CA
  • 5–15 second cure on wood, faster than most industrial alternatives
  • Low viscosity wicks into tight joints for maximum surface contact
  • Loctite industrial quality standard used in manufacturing applications

Cons

  • Higher price than consumer alternatives
  • Low viscosity runs, not suitable for open joints or rough surfaces without accelerator
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