Loctite 243 Pipe & Thread Sealant Liquid for Threadlocking. 10 ml Bottle, -55 → +180 °C

  • RS Stock No. 693-848
  • Mfr. Part No. LOCTITE® 243
  • Manufacturer Loctite
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): IE
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.

Loctite Pipe & Thread Sealant Liquid

The Loctite blue 10ml pipe and thread sealant liquid is designed for locking and sealing of threaded fasteners, which require normal disassembly with standard hand tools. It cures when confined in the absence of air between close-fitting metal surfaces and prevents loosening and leakage from shock and vibration. This product is composed if methacrylate and provides robust curing performance. Its thixotropic nature reduces the migration of liquid product after application to the substrate. This not only works on active metals (brass, copper, etc) but also on passive substrates such as stainless steel and plated surfaces. It offers high-temperature performance and oil tolerance. It tolerates minor surface contaminations from various oils, such as cutting, lubrication, anti-corrosion and protection fluids.

Features and Benefits

• Cure time is 2 hours
• Medium strength
• Medium viscosity, thixotropic
• Oil tolerant
• Operating temperature ranges between -55°C and 150°C
• Permits disassembly with hand tools for servicing
• Torque tension grade


Thread locking
• Suitable for less active surfaces


ANSI/ESD S20.20:2014
• BS EN 61340-5-1:2007

Threadlocking and Retainers

Attribute Value
Trade Name Loctite 243
Application Threadlocking
Cure Time 2 h
Anaerobic Yes
Colour Blue
Product Form Liquid
Package Type Bottle
Package Size 10 ml
Maximum Operating Temperature +180°C
Minimum Operating Temperature -55°C
Operating Temperature Range -55 → +180 °C
Special Features Anaerobic
Viscosity Description Thixotropic
39 Within 1 working day(s) (IE stock)
1455 Within 2 working day(s) (EU stock)
Unit of sale: Each
(exc. VAT)
(inc. VAT)
Per unit
1 +
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