{"product_id":"loctite-242-medium-strength-threadlocker-blue-250-ml-bottle-removable-temperature-resistant","title":"Loctite 242 Medium Strength Threadlocker — Blue 250 mL Bottle, Removable, Temperature Resistant","description":"\u003cp\u003e\u003cstrong\u003eLoctite 242 Blue is a medium-strength anaerobic threadlocker in a 250 mL bottle designed to lock and seal threaded fasteners from 1\/4\" to 3\/4\" while remaining serviceable with standard hand tools.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEngineered for general-purpose industrial and maintenance applications, this Loctite 242 Medium Strength Threadlocker cures in the absence of air and on metal surfaces to prevent loosening from vibration and leakage from fluid exposure. The blue formulation balances secure locking with disassembly capability, fully curing in about 24 hours and offering operating performance from -65°F up to 300°F. Supplied as a liquid in a 250 mL bottle, it has a viscosity range of 1200–5000 cP and fills gaps up to 0.005 inches.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly will Loctite 242 set and when is it fully cured?\u003c\/h3\u003e\n\u003cp\u003eInitial handling strength develops within approximately 10 minutes after application, allowing assemblies to be handled. Full cure typically completes in 24 hours under normal conditions, though cure speed depends on metal contact area and temperature.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInitial handling time: ~10 minutes\u003c\/li\u003e\n  \u003cli\u003eFull cure time: ~24 hours\u003c\/li\u003e\n  \u003cli\u003eCures anaerobically—requires confined metal surfaces and absence of air\u003c\/li\u003e\n  \u003cli\u003eFaster cures on larger metal contact areas and at warmer temperatures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat range of fastener sizes and environments is this threadlocker suitable for?\u003c\/h3\u003e\n\u003cp\u003eLoctite 242 is formulated for fasteners with diameters from 1\/4\" to 3\/4\", providing medium-strength locking for bolts, nuts, studs and similar hardware. Its operating temperature span makes it suitable for many indoor and moderate-temperature outdoor applications.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFastener diameter suitability: 1\/4\" to 3\/4\"\u003c\/li\u003e\n  \u003cli\u003eService temperature range: -65°F to 300°F\u003c\/li\u003e\n  \u003cli\u003eGap-filling capability: up to 0.005 inches\u003c\/li\u003e\n  \u003cli\u003eRemovable with standard hand tools when disassembly is required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the physical and handling properties I should know?\u003c\/h3\u003e\n\u003cp\u003eThe product is an anaerobic liquid with a specific gravity of about 1.1 and a viscosity between 1200 and 5000 cP, making it easy to apply from a bottle while staying in place on threads. It has a flash point over 93.3°C and is manufactured in the United States by Loctite for consistent quality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePhysical form: liquid in 250 mL bottle\u003c\/li\u003e\n  \u003cli\u003eViscosity: 1200–5000 cP for controlled flow\u003c\/li\u003e\n  \u003cli\u003eFlash point: \u0026gt;93.3°C for storage and safety considerations\u003c\/li\u003e\n  \u003cli\u003eMade in the United States by Loctite (Henkel brand)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I remove or replace fasteners treated with Loctite 242?\u003c\/h3\u003e\n\u003cp\u003eBecause this is a medium-strength threadlocker, treated fasteners can be disassembled with conventional hand tools. If a stronger bond or damaged threads are encountered, heat or dedicated threadlocker removers can assist removal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRemovable using hand tools for typical maintenance tasks\u003c\/li\u003e\n  \u003cli\u003eExtra assistance: controlled heat or chemical removers if needed\u003c\/li\u003e\n  \u003cli\u003eAlways allow sufficient cure time before applying disassembly torque\u003c\/li\u003e\n  \u003cli\u003eInspect threads for damage before reuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Loctite 242 Blue Medium Strength Threadlocker suits technicians, maintenance crews, mechanics, fabricators and DIYers who need a reliable, removable locking solution for machinery, automotive assemblies, HVAC components and general equipment. It’s ideal when you want dependable vibration resistance and fluid sealing but also need the option to service or replace parts using standard tools.\u003c\/p\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 used on painted or plated threads?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Best results occur on clean metal; remove paint, oil or plating at the mating surfaces before applying for proper anaerobic cure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is Loctite 242 permanent or removable?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It provides medium-strength locking—secure under vibration but removable with common hand tools; heat or removers can help if needed.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Loctite","offers":[{"title":"Default Title","offer_id":55168346653015,"sku":"B00065U8K6","price":55.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/loctite-242-blue-front-bottle.jpg?v=1790401180","url":"https:\/\/britishgarage.co.uk\/products\/loctite-242-medium-strength-threadlocker-blue-250-ml-bottle-removable-temperature-resistant","provider":"British Garage","version":"1.0","type":"link"}