Loctite Explained

Loctite Corporation
Origin:	Rocky Hill, Connecticut, U.S.^[1]
Markets:	Worldwide
Producttype:	Adhesives Superglues Epoxies Spray adhesives Construction adhesives Threadlockers
Currentowner:	Henkel North American Consumer Goods

Loctite is an American ^[1] 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.^[2] In 1956, the name Loctite was chosen by Krieble’s daughter-in-law, Nancy Brayton Krieble.^[3] 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”.^[4] 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.^[5]

In 1997, Loctite was acquired as a flagship brand by Henkel, a German Fortune 500 company.^[6] Since then, Loctite has remained a primary Henkel brand.^[7]

Products

Products made with Loctite branding include:

• Bonding adhesives, such as cyanoacrylates,^[8] epoxies,^[9] and hot melts^[10]
• Protective coatings for industrial equipment^[11]
• Flooring and concrete repair sealants and topcoats^[12]
• Gasketing and sealing products^[13]
• Industrial anti-seize and lubricating products^[14]
• Machining compounds that supplement cutting, smoothing, and finishing processes^[15]
• Potting and encapsulating products to reinforce housed assemblies^[16]
• Repairing, rebuilding, and restoring^[17]
• 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

Further reading

• The Loctite Story by Kenneth W. Butterworth. New York: Newcomen Society of the United States, 1988.
• Chapman, Peter, "Henkel Seeks Rest of Loctite in Adhesives Industry Push", Chemical Market Reporter, November 4, 1996, p. 1.
• Drop by drop: the Loctite story, 1953-1980, by Ellsworth S. Grant. Loctite Corp., 1983 LOC #83-80637.
• Giragosian, Newman H., "Successful Product & Business Development", New York: Marcel Dekker, Inc., 1978.
• Hulstein, Calvin, "Assembling with Anaerobics", Chemtech, October 1980.
• Kiesche, Elizabeth S., "Loctite Secures a Grip in a Broader Market; Applying Technology, Marketing Expertise Worldwide", Chemical Week, March 3, 1993, p. 37.
• McClenahen, John S., "Robert Krieble's Capitalist Crusade," Industry Week, April 6, 1992.
• Wantuck, Mary-Margaret, “Drop by drop, his firm won worldwide success; how Loctite became a leader in liquid adhesives”, Nation's Business, July 1984.
• Woods, Wilton, "Sticky Stuff", Fortune, March 6, 1995, p. 24.

External links

• Loctite Worldwide
• Loctite Corporation on Encyclopedia.com
• Loctite Company History

Notes and References

1. News: Robert H. Krieble, 80, Dies; Was Co-Founder of Loctite. The New York Times . May 18, 1997. NYTimes.com.
2. Web site: Mechanical Fasteners. Henkel Corporation. 14 August 2012.
3. News: Robert H. Krieble, 80, Dies; Was Co-Founder of Loctite . The New York Times . 18 May 1997 . 2019-02-28.
4. Web site: Super Glue. Henkel Corporation. 14 August 2012.
5. Web site: Anaerobic Adhesives. Henkel Corporation. 14 August 2012.
6. News: 0458-3035. Staff. Times. Reports. Wire. Loctite Agrees to Merge With Henkel. Los Angeles Times. 2016-07-11. 1996-12-06.
7. Web site: Loctite History. Henkel Corporation. 14 August 2012.
8. Web site: Cyanoacrylate Product Information . Henkel Corporation. 15 August 2012.
9. Web site: Epoxy Product Information. Henkel Corporation. 15 August 2012.
10. Web site: Hot Melts Product Information. Henkel Corporation. 15 August 2012.
11. Web site: Industrial Coatings. Henkel Corporation. 15 August 2012.
12. Web site: Flooring and Concrete Repair Sealants and Topcoats. Henkel Corporation. 15 August 2012.
13. Web site: Gasketing and Sealing Product Information. Henkel Corporation. 15 August 2012.
14. Web site: Industrial Anti-Seize and Lubricating Products. Henkel Corporation. 15 August 2012.
15. Web site: Machining Compound Information. Henkel Corporation. 14 August 2012.
16. Web site: Potting and Encapsulating. Henkel Corporation. 14 August 2012.
17. Web site: Repairing, Rebuilding and Restoring Information. Henkel Corporation. 14 August 2012.