The tightened connection between the threads of two fasteners comes loose when subjected to vibration or constant changes in temperature. Threadlocking sealant creates a bond between the threads, keeping environmental impacts from loosening the connection. Most threadlocking sealants require extreme force or heat to release the bond locking the fasteners together. The bond created by Loctite threadlocker blue 242 breaks under the pressure applied by hand tools rather than brute force or high amounts of heat.
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Things you need
- Dry rag
- Wrench set
- Damp rag
- Methylene chloride
- Wire brush
- Round wire brush
Wipe debris and oil from the male threads entering the connection with a dry rag.
Coat the male threads of the bolt or the female threads of a blind hole with several drops of blue Loctite sealant.
Thread the male fastener into the hole or nut. Tighten the fastener by turning it clockwise with a wrench from a wrench set.
Clean threadlocker sealant from the area around the head of the male fastener with a damp rag.
Remove the male fastener by turning it counterclockwise with a wrench.
Soak the fastener in methylene chloride for three to five minutes. Pour methylene chloride into a blind hole or place a nut into the solvent.
Scrub the male threads of a fastener with a wire brush to remove the cured sealant. Push a round wire brush into a blind hole or through a nut to remove the cured sealant from the female threads of the connection.
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