{"product_id":"loctite-medium-strength-blue-threadlocker-242-250-ml-bottle-removable-vibration-resistant","title":"Loctite Medium Strength Blue Threadlocker 242, 250 mL Bottle — Removable, Vibration-Resistant","description":"\u003cp\u003e\u003cstrong\u003eLoctite 24241 Blue is a medium-strength anaerobic threadlocker in a 250 mL bottle designed to lock and seal threaded fasteners while still allowing removal with hand tools.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis liquid threadlocker from Loctite (Series 242) cures without air between metal threads to prevent loosening from vibration, seal against leakage and protect against corrosion. Supplied in a 250 mL bottle, the formula is blue, has medium bonding strength, and is engineered for fasteners with diameters from 1\/4\" (6 mm) up to 3\/4\" (19 mm). It offers a practical balance of holding power and serviceability: assembled joints resist vibration but can still be disassembled using common tools when maintenance is needed.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly does this threadlocker set and fully cure?\u003c\/h3\u003e\n\u003cp\u003eInitial handling strength develops in minutes, with cure speed depending on the metal contact area and environmental conditions. Typical handling time is about 10 minutes and a full cure is achieved in approximately 24 hours under normal conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInitial set: ~10 minutes\u003c\/li\u003e\n  \u003cli\u003eFull cure: ~24 hours\u003c\/li\u003e\n  \u003cli\u003eBest cure where metal-to-metal contact is consistent and air is excluded\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat fastener sizes and gaps is Loctite 242 suitable for?\u003c\/h3\u003e\n\u003cp\u003eFormulated for a wide range of common fasteners, this medium-strength threadlocker is optimized for bolts and screws from roughly 1\/4\" to 3\/4\" in diameter. It handles small thread clearances; gap fill capability is about 0.005 inches, so it works best on properly fitting threads rather than large, loose joints.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended fastener diameter: 1\/4\" to 3\/4\" (6–19 mm)\u003c\/li\u003e\n  \u003cli\u003eGap fill: approximately 0.005 in (0.13 mm)\u003c\/li\u003e\n  \u003cli\u003eNot intended for large voids or heavily corroded threads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat temperature and chemical properties affect performance?\u003c\/h3\u003e\n\u003cp\u003eThe cured adhesive remains stable across a broad working range, performing in environments from very cold to high heat. It is an anaerobic, liquid formulation with measurable viscosity and a flash point above 93.3°C for safer storage and handling.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOperating temperature range: -65°F to 300°F (-54°C to 149°C)\u003c\/li\u003e\n  \u003cli\u003eSpecific gravity: ~1.1; viscosity: 1200–5000 cP\u003c\/li\u003e\n  \u003cli\u003eFlash point: \u0026gt;93.3°C; chemical type: anaerobic\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I remove fasteners if I need to service or replace them?\u003c\/h3\u003e\n\u003cp\u003eBecause this is a medium-strength formulation, joints are serviceable and can be taken apart with standard hand tools or controlled heating if required. The product is designed to allow removal without damaging threads when proper techniques are used.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemovable with hand tools under normal conditions\u003c\/li\u003e\n  \u003cli\u003eApplying heat or penetrating tools can aid stubborn joints\u003c\/li\u003e\n  \u003cli\u003eAvoid prolonged exposure to extreme heat that could alter properties\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Loctite 24241 Blue 250 mL is intended for mechanics, maintenance technicians, builders, and hobbyists who need a reliable medium-strength threadlocker for machinery, automotive assemblies, household repairs and industrial equipment. Manufactured in the United States, it suits applications that demand vibration resistance and a balance between permanent locking and future disassembly.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAdhesives \u0026amp; Sealants\u003c\/li\u003e\n  \u003cli\u003eCountry of manufacture: United States\u003c\/li\u003e\n  \u003cli\u003eManufacturer: Loctite\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can Loctite 242 be removed later?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it’s a medium-strength formula designed to be removable with standard hand tools; heat or mechanical assistance can help if needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What fastener sizes work with this threadlocker?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Ideal for fasteners approximately 1\/4\" to 3\/4\" in diameter and fills thread gaps up to about 0.005 inches.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Loctite","offers":[{"title":"Default Title","offer_id":67587449716921,"sku":"B00065U8K6","price":101.57,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/loctite-24241-blue-250ml-front-label.jpg?v=1790508571","url":"https:\/\/redleafauto.ca\/products\/loctite-medium-strength-blue-threadlocker-242-250-ml-bottle-removable-vibration-resistant","provider":"Redleaf Auto","version":"1.0","type":"link"}