More than 50 years ago, LOCTITE says it introduced the world’s first ever anaerobic threadlocking adhesive and despite the maturity of the technology, it has been continually developed to provide new benefits and the company now asserts that its latest generation threadlockers are ‘the best ever’. Henkel’ says its LOCTITE threadlocking adhesives prevent self-loosening and secure any threaded fastener against vibration and shock loads and many are easy-flowing liquids which completely fill the gaps between mating threads.When used to assemble threaded fasteners, LOCTITE threadlockers can permanently secure assemblies and eliminate fretting corrosion. The company says two of the most popular products in this range – LOCTITE 270 and 243 - exemplify the advances that have recently been made. LOCTITE 270 is a high strength adhesive, ideal for permanent locking of assemblies that do not require regular disassembly for maintenance. Its medium strength counterpart – LOCTITE 243 – is formulated to allow disassembly with hand tools for servicing.
The company says the latest formulations of both these products provide higher performance on various metals, even without the use of an activator. So, they are equally effective on iron, copper, brass and steel as well as on passive substrates such as stainless steel, aluminium and plated surfaces. Their temperature resistance has also been increased to 180°C, from 150°C, extending the products’ scope of application; superior heat ageing resistance has also been improved.
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