Loctite
5458500
224964802
2008-07-11T05:53:46Z
Jhawkinson
3664026
Undo dab. This page is *not* about the company, it's about the brand. And the [[Threadlocker page]] is worse than empty. Also, please use the hatnote templates at [[WP:HN]]
'''Loctite''' is a wide-ranging brand of adhesives which includes acrylics, anaerobics, cyanoacrylates, epoxies, hot melts, silicones, urethanes and UV/light curing adhesives.<ref>[http://www.loctite.com/int_henkel/loctite_us/index.cfm?] Loctite corporate website</ref>
The name Loctite was chosen in 1956 by the daughter-in-law of Dr. Vernon Krieble, inventor of a unique [[adhesive]] [[resin]] that hardened in the absence of air, as a replacement for less-reliable [[Lock washer|locking washers]] when securing [[bolts]] and [[screw]]s.<ref>{{de icon}} [http://www.loctite.com/int_henkel/loctite_uk/index.cfm?&pageid=18&layout=2 Loctite Worldwide, United Kingdom and Ireland<!-- Bot generated title -->]</ref> Vernon Krieble is listed as an inventor on a number of patents, including U.S. Patent No. 2,895,950 (July 21, 1959) and U.S. Patent No. 3,046,262 (July 24, 1962).
The Loctite brand is now part of [[Henkel]], a German family company with interests in many chemical and industrial products. Loctite is the market leader in adhesive technology, and although its original anaerobic technology is still core to its business many know Loctite for its superglue ([[cyanoacrylate]]) adhesives. Loctite now offers a complete range of adhesives to provide engineering solutions for all industries globally. Loctite products are available in at least 80 countries, and are used throughout the automotive, microelectronics, aerospace and medical industries.<ref>[http://www.henkelna.com/cps/rde/xchg/henkel_us/hs.xsl/1556_USE_HTML.htm?redDotUID=brands&parentredDotUID=brands&BU=ut&countryCode=us&brand=0000000389¶m1=applications Brands - Henkel<!-- Bot generated title -->]</ref>
In addition to their consumer and industrial adhesives, other Loctite products include their cleaners, coatings, gasketing and molding products, lubricants, mold releases, sealants, surface treatments and threadlockers.<ref>[http://www.henkelna.com/cps/rde/xchg/henkel_us/hs.xsl/1556_USE_HTML.htm?redDotUID=brands&parentredDotUID=brands&BU=ut&countryCode=us&brand=0000000389¶m1=applications Brands - Henkel<!-- Bot generated title -->]</ref>
Some of Loctite's best-known adhesive products are their threadlockers, used to prevent screws and bolts from loosening, more effectively than a locking washer alone could. They are [[anaerobic]] adhesives that are based on [[methacrylate]].
== Threadlocker Grades ==
Loctite's threadlocker products come in different strength grades, to suit the particular application.
Blue Removable No. 242, 243, 246, 248, 2432 & 2440 - Used for things you may want to unscrew with minimal hassle. It cures into a brittle, glassy bond that takes one good twist to break, but removes cleanly after that. Recommended for use with valve covers, water pumps and oil pan bolts.
Red High-Strength No. 271, 262, 266, 268, 272, 277 & 2760 - Used on things that you don't want to take apart for a long time. It requires heat from a torch or iron (to 250° C) to loosen its grip. It cures into a thicker, sticky bond that holds up better against vibration and shocks. It is typically used in mechanical applications such as nuts and bolts in cars, motorbikes, snowmobiles, and watercraft.
Green - penetrating grade No. 220(blue), 290 & 294 - Used for use on parts that have already been assembled.
Purple - low strength grade No. 222MS & 222 - Used for set screws.
For Plastic threads - No. 425. - Used for small plastic threads.
== References ==
{{Reflist}}
==External links==
* [http://www.loctite.com/int_henkel/loctite_us/index.cfm Loctite US page]
* Loctite 242 MSDS[http://sds.loctite.com/wv.asp?A=putHTM%00&RID=F%5FPDF%5C%27EN%27%5C%27FG%27%5C%2724221%27%5C%27LOC%27%5C%27USA%27%5C%7Bts+%272006%2D04%2D12+20%3A15%3A59%27%7D]
[[Category:Henkel brands]]
[[Category:adhesives]]
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