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Loctite® 243 Medium Strength Blue Threadlocker is designed for the locking and sealing of threaded fasteners between 1/4" and 3/4" (6 to 20 mm), which require normal disassembly with standard hand tools. The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. The thixotropic nature of Loctite 243 reduces the migration of liquid product after application to the substrate. Loctite 243 provides robust curing performance. It not only works on active metals (e.g. brass, copper) but also on passive substrates such as stainless steel and plated surfaces. The product offers high temperature performance and oil tolerance. It tolerates minor surface contaminations from various oils, such as cutting, lubrication, anti-corrosion and protection fluids. Loctite 243 is the recommended replacement for Loctite 2440?. Registered to NSF Category P1. RoHS compliant. This product is not recommended for use in pure oxygen and/or oxygen rich systems and should not be selected as a sealant for chlorine or other strong oxidizing materials. For safe handling information on this product, consult the Material Safety Data Sheet (MSDS). Where aqueous washing systems are used to clean the surfaces before bonding, it is important to check for compatibility of the washing solution with the adhesive. In some cases these aqueous washes can affect the cure and performance of the adhesive. This product is not normally recommended for use on plastics (particularly thermoplastic materials where stress cracking of the plastic could result). Users are recommended to confirm compatibility of the product with such substrates. For Assembly 1. For best results, clean all surfaces (external and internal) with a LOCTITE cleaning solvent and allow to dry. 2. If the cure speed is too slow, use appropriate activator. (Please see the Cure Speed vs. Activator graph on the Technical Data Sheet for reference.) Allow the activator to dry when needed. 3. Shake the product thoroughly before use. 4. To prevent the product from clogging in the nozzle, do not allow the tip to touch metal surfaces during application. 5. For Thru Holes, apply several drops of the product onto the bolt at the nut engagement area. 6. For Blind Holes, apply several drops of the product to the lower third of the internal threads in the blind hole, or the bottom of the blind hole. 7. For Sealing Applications, apply a 360? bead of product to the leading threads of the male fitting, leaving the first thread free. Force the material into the threads to thouroughly fill the voids. For bigger threads and voids, adjust product amount accordingly and apply a 360? bead of product on the female threads also. 8. Assemble and tighten as required.
For Disassembly 2. In rare instances where hand tools do not work because of excessive engagement length, apply localized heat to nut or bolt to approximately 250 ?C. Disassemble while hot. 3. Apply localized heat to the assembly to approximately 250 ?C. Disassemble while hot.
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Features
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Specifications
Loctite Material Specification LMS
Storage Optimal Storage: 8 ?C to 21 ?C. Storage below 8 ?C or greater than 28 ?C can adversely affect product properties. Material removed from containers may be contaminated during use. Do not return product to the original container. Henkel Corporation cannot assume responsibility for product which has been contaminated or stored under conditions other than those previously indicated. If additional information is required, please contact your local Technical Service Center or Customer Service Representative. | |||||||||||||||||||||||
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