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How to apply Loctite Threadlockers

Published date: 15 February 2021

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In our latest article, we discussed how to choose the right threadlocker and the advantages of using them.

Continuing the same topic, in this article we will discuss how to apply them.

It is relatively straightforward to apply threadlockers however we will explain step by step what to do.

Steps

There are mainly 4 steps to consider:

  1. Preparation: Preparing the surface
  2. Application: Apply liquid threadlocker to the engagement area.  
  3. Assembly: Assemble and tighten
  4. Disassembly: Disassemble with standard hand tools

1. Preparation

Cleaning

It is recommended that LOCTITE 7063 be used for

degreasing and cleaning of surfaces prior to adhesion.

Activation

If curing speed is too slow due to passive metals

(stainless steel, aluminium and plated metals) or

low temperatures (below 5°C), use activator

LOCTITE 7240 or LOCTITE 7649

(see cure speed vs activator graph in the TDS).

 

2. Application

Apply liquid threadlocker to the engagement area.

Through Hole

Assemble bolt first and then apply threadlocker. Apply nut and tighten to correct torque.

 

Blind Hole

Apply into lower third of blind hole.

Post Assembly:

Assemble nut and bolt, dispense product at the edge of nut and bolt.

 

3. Assembly

Assemble and tighten. If multiple bolts are assembled, torque them down to the correct value inside the fixture.

4. Disassembly

Disassemble with standard hand tools. If not possible, apply localised heat to approximately 250°C and disassemble while hot. For corroded or seized parts use LOCTITE 8040 Freeze and Release.

Finally, we can also recommend the following video if you would like find out more:

Source: henkel-adhesives.com

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