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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Threadlocker Shelf Life Concerns...?
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<blockquote data-quote="ntsqd" data-source="post: 2596181" data-attributes="member: 93138"><p>I've got a huge bottle of a capillary action blue, got it for cheap because the sell-by date had passed. I've yet to see degradation in behavior or performance. One jaded Engineer I used to work with speculated that the product was given an expiration date so that Henkel could sell more product. Bottles that hit their "use by" date were still performing as expected. That said, there is an outer limit to how long the stuff stays good, and I've hit it on a couple bottles. One was a 15ml bottle of 545, <img class="smilie smilie--emoji" loading="lazy" alt="😭" title="Loudly crying face :sob:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f62d.png" data-shortname=":sob:" /> , so some sort of "use by" date does seem appropriate for highly sensitive applications.</p><p></p><p><a href="https://en.wikipedia.org/wiki/Adhesive#Anaerobic" target="_blank">"Anaerobic"</a> is without free oxygen, pressure or the lack of it has little to do with the curing process. For lock-tite type fluids to catalyze they are formulated to need metal contact and be in an environment with no free oxygen. Impurities (oil, etc.) on the metal inhibit the catalyzation process in two ways, they interfere with the metal triggering the catalyzation and they interfere with the bonding of the adhesive to the metal itself.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 2596181, member: 93138"] I've got a huge bottle of a capillary action blue, got it for cheap because the sell-by date had passed. I've yet to see degradation in behavior or performance. One jaded Engineer I used to work with speculated that the product was given an expiration date so that Henkel could sell more product. Bottles that hit their "use by" date were still performing as expected. That said, there is an outer limit to how long the stuff stays good, and I've hit it on a couple bottles. One was a 15ml bottle of 545, 😭 , so some sort of "use by" date does seem appropriate for highly sensitive applications. [URL='https://en.wikipedia.org/wiki/Adhesive#Anaerobic']"Anaerobic"[/URL] is without free oxygen, pressure or the lack of it has little to do with the curing process. For lock-tite type fluids to catalyze they are formulated to need metal contact and be in an environment with no free oxygen. Impurities (oil, etc.) on the metal inhibit the catalyzation process in two ways, they interfere with the metal triggering the catalyzation and they interfere with the bonding of the adhesive to the metal itself. [/QUOTE]
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Threadlocker Shelf Life Concerns...?
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