Thread Lock BLUE Medium Strength 50ml

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12150 blue thread locker
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Thread Lock MEDIUM (removable)


This thread lock liquid is meant for parts that will probably require adjustment at some time in the future. Use on pivot threads to allow owner diss-assembly and maintenance  but will hold the tension in place.

Product Description
Vibra-Tite 121 is a medium strength, anaerobic thread locking compound. Vibra-Tite 121 is designed for locking threaded fasteners that require disassembly with standard hand tools. The product performs on aluminum, steel, plated parts, stainless steel, and special alloy parts. Vibra-Tite 121 exhibits good temperature and is solvent resistant.

Typical Applications
Vibra-Tite 121 will lock and seal fasteners, and set screws. Vibra-Tite 121 is used in applications where shock and vibration may cause the fastener to loosen.
Properties of Uncured Material
Chemical Type: Anaerobic
Appearance: Blue
Toxicity: Low
Solids: 100%
Viscosity @ 25ºC, cPs
Brookfield RVT,
Spindle 3 @ 20 rpm: 900-1500
Specific Gravity: 1.00
Typical Curing Performance
Cure Speed
The cure speed is dependent on temperature and substrate.

Performance of Cured Material
Typical Values
Fixture Time: 15-20 min@ 72oF
Full Cure Time: 24 hrs @ 72oF
Temperature Range: -60oF to 300oF (-51oC to 150oC)
Breakaway Strength
3/8” Plain Steel nut and bolt @1 hr 50-150 lbf-in
3/8” Plain Steel nut and bolt @24 hr 75-150 lbf-in
3/8” Zinc nut and bolt @ 24 hr 60-100 lbf-in
Environmental and Fluid Resistance
(Shear strength values)
Typical Values
Heat age 100%
Engine oil@ 150oC 100%
Brake fluid @ 150oC 100%
ATF @ 150oC 85%
50/50 water/ethylene glycol @ 120oC 80%
Water @ 100oC 80%
Gasoline @ 25oC 95%
Diesel fuel @ 25oC 100%
Ethyl Alcohol @25oC 95%
Instructions for Use
Ensure parts are clean, dry and free from oil. Apply enough to cover at least a couple of threads.