Thread Lock

What is Threadlocking Adhesive?
Threadlocking adhesive also known as thread locking fluid or threadlocker is a liquid resin which is applied to threaded fasteners to prevent self-loosening, leakage and corrosion. Threadlock adhesive, when applied to the fastener threads hardens (or cures) to a tough solid when exposed to metal ions in the absence of air (anaerobic). This curing method allows the adhesive to flow evenly into the grooves of the threads and gradually harden. The hardened adhesive provides increased friction between the mating threads for a secure vibration proof connection. The adhesive also acts as a seal and protects the joint from corrosion caused by moisture, fluids and gasses
Types of Threadlocking Adhesive
Threadlocking adhesive is available in different strengths and viscosities to suit specific applications
Low Strength - this adhesive is used on screws up to one-quarter of an inch in diameter. These screws include adjustment and calibration screws, gauges, meters and other fastenings that require regular adjustment. Low strength threadlock adhesive allows the fasteners to be easily removed
Medium Strength - this adhesive is used on fasteners up to three-quarter of an inch in diameter. These fasteners are typically used in machine tools and presses, pumps, compressors and mounting bolts. This adhesive allows the fasteners to be removed using hand tools.
High Strength - this adhesive is used on fasteners up to one inch in diameter which are used in permanent assemblies such as heavy equipment. High strength threadlocking adhesive provides resistance against a high degree of vibration and offers the highest holding ability.
Low Viscosity Penetrating Adhesives - this adhesive is for use on pre-assembled fasteners
Other varieties of threadlock adhesive are available that are surface insensitive or have high temperature, chemical resistant or extreme vibration resistant formulations
Threadlocking adhesives are usually colour coded to indicate strength and whether they can be removed
Benefits
• Prevents unwanted movement or loosening due to vibration
• Prevents corrosion between the threads
• Prevents leakage
• Good temperature resistance
• Improves torque control during assembly
• Lowers maintenance and manufacturing costs by preventing seizing and fastener loosening
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Part Details Brand Trade Name Application Material Compatibility Threadlocking Strength Cure Time Colour Product Form Package Type Package Size Maximum Operating Temperature Minimum Operating Temperature Operating Temperature Range Chemical Composition Specific Gravity Setting Time Viscosity Measurement Special Features Viscosity Description Odour
Loctite Loctite 222 Purple Thread lock, 50 ml, 6 h Cure Time Loctite Loctite 222 Threadlocking - - 6 h Purple Liquid Bottle 50 ml +150°C -55°C -55 → +150 °C - - - - Anaerobic - -
Loctite Loctite 290 Green Thread lock, 10 ml, 3 h Cure Time Loctite Loctite 290 Threadlocking Brass, Stainless Steel, Steel Medium High 3 h Green Liquid Bottle 10 ml +150°C -55°C -55 → +150 °C Dimethacrylate - - - Anaerobic Low Viscosity -
RS PRO T70 Green Thread lock, 50 ml RS Pro T70 Threadlocking - High - Green Liquid Bottle 50 ml +150°C -53°C -53 → +150 °C 1-Acetyl-2-Phenylhydrazine, Acrylic Acid, Cumene Hydroperoxide, Hydroxyalkyl Methacrylate, N, N-Dimethyl-P-Toluidine, Polyglycol Dimethacrylate 1.04 - - Anaerobic - -
Loctite Loctite 2700 Green Thread lock, 50 ml, 3 h Cure Time Loctite LOCTITE 2700 Threadlocking Brass, Stainless Steel, Steel High 3 h Green Liquid Bottle 50 ml +150°C -55°C -55 → +150 °C - - - - Anaerobic - -
Loctite Loctite 2400 Blue Thread lock, 50 ml, 2 h Cure Time Loctite LOCTITE 2400 Threadlocking Brass, Stainless Steel, Steel Medium 2 h Blue Liquid Bottle 50 ml +150°C -55°C -55 → +150 °C - - - - Anaerobic - -
Loctite Loctite 290 Green Thread lock, 50 ml, 3 h Cure Time Loctite Loctite 290 Threadlocking Brass, Stainless Steel, Steel Medium High 3 h Green Liquid Bottle 50 ml +150°C -55°C -55 → +150 °C - - - - Anaerobic - -
RS PRO T70 Green Thread lock, 10 ml RS Pro T70 Threadlocking - High - Green Liquid Bottle 10 ml +150°C -53°C -53 → +150 °C 1-Acetyl-2-Phenylhydrazine, Acrylic Acid, Cumene Hydroperoxide, Hydroxyalkyl Methacrylate, N, N-Dimethyl-P-Toluidine, Polyglycol Dimethacrylate 1.04 - - Anaerobic - -
Loctite Loctite 5400 Yellow Thread lock, 50 ml, 1 week Cure Time Loctite LOCTITE 5400 Thread Sealing Metal Medium 1 week Yellow Liquid Bottle 50 ml +150°C - Maximum of +150 °C - - - - Anaerobic - -
Loctite Loctite 221 Purple Thread lock, 50 ml, 210 min Cure Time Loctite Loctite 221 Threadlocking Brass, Stainless Steel, Steel Low 210 min Purple Liquid Bottle 50 ml +150°C -55°C -55 → +150 °C - - - - - - -
Loctite Loctite 276 Green Thread lock, 50 ml Loctite LOCTITE 276 Threadlocking Brass, Stainless Steel, Steel High - Green Liquid Bottle 50 ml +150°C -55°C -55 → +150 °C - - - - Anaerobic - -
Loctite Loctite 5800 Red Thread lock, 50 ml, 1 week Cure Time Loctite LOCTITE 5800 Gasketing Metal Medium 1 week Red Liquid Bottle 50 ml +180°C - Maximum of +180 °C - - - - Anaerobic - -
Loctite Loctite 6300 Green Thread lock, 50 ml, 1 week Cure Time Loctite LOCTITE 6300 Retaining Metal High 1 week Green Liquid Bottle 50 ml +175°C - Maximum of +175 °C - - - - Anaerobic - -
Jelt Varybond 12-43 Blue Thread lock, 50 ml, 1 → 3 h Cure Time Jelt VARYBOND 12-43 Threadlocking Metal, Stainless Steel, Steel High 1 → 3 h Blue - Bottle 50 ml +150°C -55°C -55 → +150 °C - - 2 → 4min - - - -
Loctite Loctite 2432 Blue Thread lock, 50 ml, 24 h Cure Time Loctite Loctite 2432 Threadlocking Metal Medium 24 h Blue Liquid Bottle 50 ml +149°C -54°C -54 → +149 °C - 1.08 - - - Medium Viscosity Characteristic
Loctite Loctite 271 Red Thread lock, 250 ml, 15 min Cure Time Loctite Loctite 271 Threadlocking Brass, Stainless Steel, Steel High 15 min Red Liquid Bottle 250 ml +150°C -55°C -55 → +150 °C - - - - - - -
RS PRO T90 Green Thread lock, 50 ml RS Pro T90 Threadlocking - Medium - Green Liquid Bottle 50 ml +150°C -50°C -50 → +150 °C 1-Acetyl-2-Phenylhydrazine, Acrylic Acid, Cumene Hydroperoxide, Hydroxyalkyl Methacrylate, N, N-Dimethyl-P-Toluidine, Polyglycol Dimethacrylate 1.08 - 1.25mPa/s Anaerobic Medium Viscosity -
RS PRO T90 Green Thread lock, 10 ml RS Pro T90 Threadlocking - Medium - Green Liquid Bottle 10 ml +150°C -50°C -50 → +150 °C 1-Acetyl-2-Phenylhydrazine, Acrylic Acid, Cumene Hydroperoxide, Hydroxyalkyl Methacrylate, N, N-Dimethyl-P-Toluidine, Polyglycol Dimethacrylate 1.08 - 1.25mPa/s Anaerobic Medium Viscosity -
RS PRO T71 Red Thread lock, 250 ml, 24 h Cure Time RS Pro T71 Threadlocking - - 24 h Red Liquid Bottle 250 ml +150°C -50°C -50 → +150 °C 1-Acetyl-2-Phenylhydrazine, Acrylic Acid, Cumene Hydroperoxide, N, N-Dimethyl-P-Toluidine, Polyglycol Dimethacrylate 1.1 - - - Medium Viscosity -
Jelt Varybond 12-71 Green Thread lock, 50 ml, 5 → 10 h Cure Time Jelt VARYBOND 12-71 Threadlocking Metal - 5 → 10 h Green - Bottle 50 ml +150°C -55°C -55 → +150 °C - - 10 → 20min - - - -
Loctite Loctite 2700 Green Thread lock, 250 ml, 3 h Cure Time Loctite LOCTITE 2700 Threadlocking Brass, Stainless Steel, Steel High 3 h Green Liquid Bottle 250 ml +150°C -55°C -55 → +150 °C - - - - Anaerobic - -
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