Loctite 243 Pipe & Thread Sealant Liquid for Threadlocking. 50 ml Bottle, -55 +180 °C

  • RS Stock No. 408-4080
  • Mfr. Part No. 1335885
  • Manufacturer Loctite
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): GB
Product Details

Loctite® 243 Threadlocking

Medium strength oil tolerant torque tension grade
General purpose threadlocking
Particularly suitable for less active surfaces e.g. stainless steel
Prevents loosening through vibration and leakage of threaded fasteners


Testing should be carried out prior to contact with styrene, acrylic and polycarbonate based plastics to ensure compatibility.

This Loctite 243 is designed for the locking and sealing of threaded fasteners which require normal disassembly with standard hand tools. It offers high temperature performance and oil tolerance.


Technology: Acrylic Chemical Type: Dimethacrylate ester Fluorescence: Positive under UV light Components: One component - requires no mixing Viscosity: Medium, thixotropic Cure: Anaerobic Secondary: Cure Activator Application: Threadlocking Strength: Medium

How to use Loctite 243?

Clear all surfaces (external and internal) with a cleaning solvent and allow to dry Cure speed too slow? You need to use appropriate activator and then allow to dry it when needed Shake it before use To prevent the Loctite 243 from clogging in the nozzle, avoid tip and metal surface get in contact during application Store in dry location

How to clean Loctite 243 after using?

It could be removed with a combination of soaking in a solvent and wire brush.

Where can you use Loctite 243?

It works on active metals such as brass or copper as well as on passive substrates ie. stainless steel and plated surfaces.

Threadlocking and Retainers

Attribute Value
Application Threadlocking
Colour Blue
Strength Medium
Minimum Operating Temperature -55°C
Maximum Operating Temperature +180°C
Package Size 50 ml
Product Form Liquid
Trade Name Loctite 243
Chemical Ingredients Methacrylate
Package Type Bottle
Anaerobic Yes
Cure Time 2 h
Special Features Anaerobic
Operating Temperature Range -55 +180 °C
14 Within 1 working day(s) (IE stock)
490 Within 2 working day(s) (EU stock)
Unit of sale: Each
(exc. VAT)
(inc. VAT)
Per unit
1 +
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