LOCTITE® 243™ is designed for the locking and sealing of threaded fasteners 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 particularly suited for locking threaded fasteners of various equipment such as pumps, gearboxes, motors and vehicles.
| Supplier | |
|---|---|
| Additive Classification | Threadlocker |
| Industry | Automotive & Transportation, Building & Construction, Electrical & Electronics, Marine Vessels, Wind Energy |
| Specific Gravity @ 25 °C | 1.08 |
| Flash point | see SDS |
| Viscosity, Brookfield – RVT, 25°C , mPa·s (cP): Spindle 3, Speed 20 rpm |
1,300 to 3,000 |
| Viscosity, Cone & Plate, 25 °C, mPa·s (cP): Cone 35/2 @ 129 s-1 |
350 |
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 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 thoroughly 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
1. Remove with standard hand tools.
2. In rare instances where hand tools do not work because of excessive engagement length, apply localized heat, approximately 250°C to nut or bolt. Disassemble while hot.
Clean-up:
1. Cured product can be removed with a combination of soaking in a LOCTITE® solvent and mechanical abrasion such as a wire brush.
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