science

Loctite

Loctite is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Loctite rather than just read about it. In short: Loctite is an American brand of adhesives, sealants, surface treatments, and other industrial chemicals that include acrylic, anaerobic, cyanoacrylate, epoxy, hot melt, silicone, urethane, and UV/light curing technologies. Loctite products are sold globally and are used in a variety of industrial and hobbyist applications.

Loctite — illustration

Key takeaways

Loctite belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Loctite to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Loctite from memory before moving on to harder problems.

Reference excerpt

Loctite is an American brand of adhesives, sealants, surface treatments, and other industrial chemicals that include acrylic, anaerobic, cyanoacrylate, epoxy, hot melt, silicone, urethane, and UV/light curing technologies. Loctite products are sold globally and are used in a variety of industrial and hobbyist applications.

History In 1953, American professor Vernon K. Krieble developed anaerobic threadlocking adhesives in his basement laboratory at Trinity College in Hartford, Connecticut. Krieble's company, American Sealants, founded the Loctite brand, which was promoted as ushering in a new era of mechanical reliability by eliminating the vibrational loosening of mechanical fasteners, a frequent cause of machine failure. In 1956, the name Loctite was chosen by Krieble's daughter-in-law, Nancy Brayton Krieble. The Loctite sealant made its official public debut at a press conference at the University Club of New York on July 26 of that year. In 1963, American Sealants changed its name to the Loctite Corporation. After Vernon Krieble's death in 1964, his son Robert H. Krieble, also a chemist, served as chief executive until 1985. The Vernon K. Krieble Foundation was established in 1984 in honor of the co-founder. In 1964, Loctite introduced cyanoacrylate adhesives (a repackaged Eastman product, developed at Tennessee Eastman/Eastman Chemical in 1942, and originally marketed as "Eastman 910"), later known as "Super Glue". It was the first of many new products, including silicones, epoxies, acrylics, and the development of new Loctite anaerobics. The 1980s brought about the addition of a line of micro anaerobic adhesives. In 1997, Loctite was acquired as a flagship brand by Henkel, a German Fortune 500 company. Since then, Loctite has remained a primary Henkel brand.

Products

Products made with Loctite branding include:

Bonding adhesives, such as cyanoacrylates, epoxies, and hot melts Protective coatings for industrial equipment Flooring and concrete repair sealants and topcoats Gasketing and sealing products Industrial anti-seize and lubricating products Machining compounds that supplement cutting, smoothing, and finishing processes Potting and encapsulating products to reinforce housed assemblies Repairing, rebuilding, and restoring Retaining compounds for non-threaded cylindrical assemblies Surface preparation products such as cleaners and degreasers Threadlockers and thread sealants in anaerobic liquid and semi-solid formulations Medical applications (adhesives, dispensing equipment, curing systems) Adhesive equipment (controllers, reservoirs, applicators, valves, dispensing systems, pumps, monitoring systems). Solder pastes

Sponsorships Loctite was a technical partnership for McLaren since the beginning of the Mercedes partnership in 1995 to 2003, until the brand itself was owned by Henkel and switching it in 2004 and extended to 2007. They also sponsored the original Team Lotus in 1993 and 1994. Loctite was a primary sponsor for both Mugen and Nismo teams in Japan Grand Touring Car Championship in GT500 class between 2000 and 2001.

References

Illustrations

Worked examples

Example 1 — a first encounter with Loctite

Start with the simplest possible case. Write down what Loctite claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Loctite before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Loctite ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Loctite

In research: Loctite appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Loctite in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Loctite is common in secondary-school and first-year university syllabi. It links to neighbouring topics Adhesives, American brands, Henkel brands, so understanding it makes those chapters shorter.
In everyday life: Look for Loctite outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Loctite in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Loctite means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Loctite out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Loctite in simple terms?

Why does Loctite matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Loctite?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Loctite.