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Loctite 40140 401 Prism Surface Insensitive Instant Adhesive

Loctite

Loctite 40140 401 Prism Surface Insensitive Instant Adhesive

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

Is the Loctite 40140 401 Prism Surface Insensitive Instant Adhesive worth it?

Yes, for the right buyer. The Loctite 40140 401 Prism Surface Insensitive Instant Adhesive ranks #5 in our Best Super Glue for Wood 2026 list (best industrial). Its biggest strength: industrial purity produces more consistent cure strength than consumer CA. The main caveat: higher price than consumer alternatives.

Overview

What the Loctite 40140 401 Prism Surface Insensitive Instant Adhesive does well

One caveat, higher price than consumer alternatives.

Specs that matter

Key features

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

Pros & cons

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
Fit check

Should you buy the Loctite 40140 401 Prism Surface Insensitive?

Buy it if you're…

  • Shopping for wood 2026

Think twice if this matters to you

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

Featured in 1 best-of list

ListRank
Best Super Glue for Wood 2026· Best Industrial#5 / 8
Cross-shop

Alternatives to the Loctite 40140 401 Prism Surface Insensitive Instant Adhesive

Products ranked near it in our research, each better for a slightly different buyer.

Buying advice: woodworking

  1. Clamps, a combination square, a good saw and a drill cover most beginner projects.
  2. You can never have too many. Bar clamps handle wide glue-ups; quick-grip clamps are fast for smaller work.
  3. Standard wood glue suits indoor projects. Water-resistant glue suits outdoor work and cutting boards.
  4. Oils are easy to apply and repair. Polyurethane and varnish protect tabletops and floors better.
  5. Eye and hearing protection and dust collection matter from the first project. Lay oily rags flat to dry to prevent fires.

Read the full guides

Answers

Loctite 40140 401 Prism Surface Insensitive Instant Adhesive: common questions

Is the Loctite 40140 401 Prism Surface Insensitive Instant Adhesive worth buying?

Yes, for the right buyer. The Loctite 40140 401 Prism Surface Insensitive Instant Adhesive ranks #5 in our Best Super Glue for Wood 2026 list (best industrial). Its biggest strength: industrial purity produces more consistent cure strength than consumer CA. The main caveat: higher price than consumer alternatives.

Who is the Loctite 40140 401 Prism Surface Insensitive Instant Adhesive best for?

Based on our research it suits wood 2026. It's ranked #5 of 8 in our Best Super Glue for Wood 2026 list.

What are the downsides of the Loctite 40140 401 Prism Surface Insensitive Instant Adhesive?

The main trade-offs owners and reviewers point to: higher price than consumer alternatives; low viscosity runs, not suitable for open joints or rough surfaces without accelerator.

What are the key features of the Loctite 40140 401 Prism Surface Insensitive Instant Adhesive?

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

What are the best alternatives to the Loctite 40140 401 Prism Surface Insensitive Instant Adhesive?

Worth comparing: Bob Smith Industries BSI-131H Insta-Cure Thin Super Glue, 1 oz., 3M Scotch-Weld CA8 Instant Adhesive and Bob Smith Industries BSI-139H Super-Gold Odorless Foam-Safe CA. Each ranks near it in our research for a slightly different buyer.

Where can I buy the Loctite 40140 401 Prism Surface Insensitive Instant Adhesive?

It's sold on Amazon. Prices and stock change often, so check the current listing before you buy, our link takes you straight to it.

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