{"id":1401,"date":"2011-06-23T07:55:23","date_gmt":"2011-06-23T07:55:23","guid":{"rendered":"https:\/\/permabond.com\/anaerobic-threadlockers\/"},"modified":"2025-02-26T10:57:38","modified_gmt":"2025-02-26T10:57:38","slug":"anaerobic-threadlockers","status":"publish","type":"post","link":"https:\/\/permabond.com\/es\/anaerobic-threadlockers\/","title":{"rendered":"Anaerobic threadlockers – Permabond"},"content":{"rendered":"

Anaerobic threadlockers are anaerobic adhesives<\/a> that lock fasteners in place. Their role is to prevent loosening due to vibration, thermal expansion or other stresses.\u00a0 Anaerobic threadlockers also permit safe removal of the fastener. Strange as this may seem at first glance, the most important need is to protect the fastener against damage during the removal process.<\/p>\n

<\/p>\n

The big issue when removing fasteners is torque.<\/em> One of the key benefits of threadlockers is that they maintain a controlled off-torque strength. This makes their performance consistent with the performance demands on the fastener. Torque strength is listed as both \u201cbreak\u201d and \u201cprevail.\u201d The break (or break away) is the measure of force needed to initiate movement of an unseated fastener in a loosening direction.\u00a0 The prevail (or prevailing torque) measures the average force needed to provide continuing movement, after break away, through the first full turn.<\/p>\n

Important:<\/strong> Remember that this is the strength of the threadlocker alone<\/em>.\u00a0 The test is performed on hand-tightened unseated bolts<\/em>.<\/p>\n

There are potentially major risks when removing fasteners. Rust, galvanic corrosion, and crevice corrosion can weaken fasteners as well as make them very difficult to remove.\u00a0 Surface corruption and sticking issues like these around the thread can do significant damage. Anaerobic threadlockers prevent corrosion, so the torque required to remove the fastener is consistent. This reduces the\u00a0 risk of using excessive torque forces that may damage the fastener (and the thread, in some cases.)<\/p>\n

Threadlocker selection<\/strong><\/h3>\n

To determine the best anaerobic threadlocker for a removable fastener:<\/p>\n

    \n
  • First, determine what the metals are \u2013\u00a0<\/em><\/strong> The strength on the threadlockers TDS is likely on steel. Strengths on passivated metals and anodized aluminum may be less, and strength on more active metals such as copper may be higher.<\/li>\n
  • The size of the bolt also contributes to the strength.<\/em><\/strong> Larger diameter fasteners have more surface area. This requires more torque strength to remove.\u00a0 Smaller diameters have less surface area, but the fastener may not be able withstand as much torque. Be particularly careful with this aspect of selecting your threadlocker.<\/em> If in doubt, consult with the supplier for options.<\/li>\n<\/ul>\n

    Removing permanent threadlockers<\/strong><\/h3>\n

    To remove a bolt with permanent threadlocker, heat the part carefully with a hot air gun at temperatures from 450 to 600\u00b0F prior to removing with a wrench. Anaerobic threadlockers cure to a thermoset plastic that will soften at higher temperatures.\u00a0 Disassemble while still at high temperature. Be patient during the removal of the fastener, and do not<\/strong> apply excessive force if it sticks<\/em>. Important:<\/strong> Once the assembly cools down, it will re-solidify.<\/em><\/strong><\/p>\n

    Please note:<\/strong> This information is intended as a general guide only. It is very strongly advised that due care and caution are exercised during the removal process to avoid any damage to fasteners<\/em>.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Anaerobic threadlockers are anaerobic adhesives that lock fasteners in place. Their role is to prevent loosening due to vibration, thermal expansion or other stresses.\u00a0 Anaerobic threadlockers also permit safe removal of the fastener. Strange as this may seem at first glance, the most important need is to protect the fastener against damage during the removal […]<\/p>\n","protected":false},"author":5,"featured_media":11855,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[614,615],"tags":[42,49],"class_list":["post-1401","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adhesive-types-2","category-anaerobic-adhesives","tag-adhesives","tag-anaerobic-adhesives"],"acf":[],"yoast_head":"\nAnaerobic threadlockers<\/title>\n<meta name=\"description\" content=\"Anaerobic threadlockers are anaerobic adhesives that lock fasteners in place. 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