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A small blue plastic bottle with a white cap and label, sitting upright

Loctite

Loctite 425 Assure Blue Medium Strength 20 g Bottle

SKU CH-A9YD-N9MCX

Medium-strength blue threadlocker for plastic fasteners up to 1/2 in diameter, 20 g bottle cures in one day

  • ColorBlue
  • Medium-strength threadlocking on plastic fasteners
  • 20 g bottle supplies enough adhesive for multiple assemblies
  • Blue colour gives instant visual confirmation during application
  • Fixtures in 1.5 min for rapid production flow
  • Withstands temperatures up to 185 °F for reliable service

Loctite 425 Assure Blue Medium Strength Threadlocker

Loctite 425 Assure is a blue, medium-strength threadlocker formulated specifically for plastic fasteners. Supplied in a 20 g bottle, it uses a cyanoacrylate and ethylene diacetate chemical base. The product suits maintenance engineers and assembly technicians who need reliable locking on plastic threaded components up to 1/2 in diameter.

Suited for plastic assemblies needing vibration

This threadlocker suits applications on plastic parts where medium holding power and a 1.5 minute working time are required. It is not for buyers who need a high-strength formula for metal fasteners, nor for those requiring instant fixture or a product approved for potable water systems. Users needing a larger volume than 20 g should look at alternative pack sizes.

Fits maintenance kits and assembly stations

The 20 g bottle integrates easily into tool kits or bench-top storage for on-demand application. Its solvent clean-up method allows straightforward removal of excess adhesive during assembly. The 1 day full cure time and 185 Degrees F maximum operating temperature suit standard industrial environments, while compliance with OSHA 29 CFR 1910.1200 and TSCA supports regulatory adherence.

Highlights

  • Medium-strength threadlocking on plastic fasteners
  • 20 g bottle supplies enough adhesive for multiple assemblies
  • Blue colour gives instant visual confirmation during application
  • Fixtures in 1.5 min for rapid production flow
  • Withstands temperatures up to 185 °F for reliable service

Specifications

BrandLoctite
ColorBlue

Questions about this item

Does the 20 g bottle cover the 1/2 in maximum thread diameter on my plastic fasteners?

Yes, the 20 g bottle is rated for plastic threads up to 1/2 in diameter with medium strength.

Will the 1.5 min working time let me reposition parts before the bond sets?

You have about 1.5 minutes to adjust parts before the threadlocker begins to cure on plastic threads.

How can I confirm the joint has reached full strength after assembly?

Full cure is reached after 1 day at room temperature; the joint will then hold its rated breakaway torque of .25 in-lb.

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