LOCTITE® 243™ is suitable for use on most "as-received" fasteners with light coatings of corrosion prevention oils without cleaning. However, for heavily oiled or contaminated fasteners, it is recommended to use LOCTITE® SF 7070™ to degrease and clean surfaces prior to applying LOCTITE 243 threadlocker.
2. Preparation - Activation
If cure speed is too slow due to passive metals (stainless steel, aluminum and plated metals) or low temperature (below 5°C), use activator LOCTITE® SF 7649™ (see cure speed vs activator graph in the TDS).
Apply liquid threadlocker to the engagement area. For manual dispensing, the use of a peristaltic handgun or the LOCTITE® Pro Pump is recommended to ensure a consistent application volume.
4. Application - Through Hole
Insert bolt and apply threadlocker to the exposed thread. Assemble nut and tighten to the correct/specified torque.
5. Application - Blind Hole
Apply several drops of liquid threadlocker down the sides of the blind hole filling the lower third. Apply several drops to the bolt.
Assemble and tighten. If several bolts are being assembled, torque them down to the correct value within the fixture.
7. Disassembly - Hand Tools
Disassemble with standard hand tools.
For the disassembly of corroded or seized parts use LOCTITE® LB 8040™ Freeze and Release.