Taftlock 22 is a low-strength anaerobic threadlocker for small metal fasteners up to 6 mm, such as set screws and fine adjusters that need to be removed later. The purple liquid (1000 cps) cures only between close-fitting metal threads in the absence of air, sealing them against vibration loosening, corrosion and fluid leakage while still releasing with hand tools. It holds from -55 C to +150 C, reaches handling strength in about 20 minutes and full cure in 24 hours.
PRODUCTS · ANAEROBIC ADHESIVES
Taftlock 22 purple threadlocker, hand-tool removable
Low-strength anaerobic thread locker for small screws up to 6 mm, allowing easy disassembly while resisting vibration loosening.
Sibling products: Taftlock 43 Taftlock 71
Chemistry: Anaerobic Adhesives
Industries: Automotive, Bus & Truck, Marine & Shipbuilding, Metal Fabrication, Transportation
Anaerobic AdhesivesMetal
Service temp
-55 to 150 °C
Cure speed
20 minutes (handling cure)
Headline properties from the Taftlock 22 Technical Data Sheet. Refer to the current TDS for full specification.
Specifications last reviewed
Specifications
| SKU | 22 |
|---|---|
| Chemistry | Dimethacrylate Ester |
| Appearance | Purple |
| Specific gravity | 1.05 |
| Viscosity | 1000 cps at 25°C |
| Fixture time | 20 minutes (handling cure) |
| Full cure | 24 hours |
| Service temperature | -55 to 150 °C |
| Shelf life | 2 years |
| Thread size | up to 6 mm |
Substrate compatibility
- Metal
Technical Data Sheet
Download the current Technical Data Sheet for full specification, handling, and cure data. The complete TDS library cross-references every MightyLoc family by chemistry, substrate, and service window.
Compliance
RoHS statements and Safety Data Sheets for this product are available on request. Contact the MightyLoc team and we will send the current documents.
Light assembly bolts · 1 point
01 / 01
Apply to the clean thread
Run a small bead onto the clean, dry thread before you fit the bolt, then tighten. Taftlock 22 is the lightest of the three grades: breakaway is about 6 N·m, enough to hold small fasteners against vibration while still undoing later with hand tools.
Tap a point on the image to see where and how to apply.
Adjustment and service · 2 points
01 / 02
Set, then service again
Low viscosity around 1000 cps wets fine threads cleanly. Handling cure is about 20 minutes and full cure 24 hours, so parts you re-check often, like adjustment and instrument screws, stay set but serviceable.
02 / 02
Holds across the working range
Once cured Taftlock 22 resists oil, water and vibration from -55 to 150°C. The low-strength grade gives a secure hold you can still release by hand.
Tap a point on the image to see where and how to apply.
Application guidance last reviewed
Technical tools: Cure-time guide Service-temperature guide Substrate-pair selector
Frequently asked questions
Taftlock 22 is a low-strength anaerobic threadlocker that locks and seals small metal fasteners up to 6 mm in diameter, such as set screws and small adjusters, where easy removal is later required. Based on a purple dimethacrylate ester, it cures only between close-fitting metal threads in the absence of air, resisting heat, vibration, oils and water.
Taftlock 22 is designed for removable assemblies and disassembles with standard hand tools, so it suits set screws and adjusters that need periodic servicing. Its low breakaway torque of 6 N.m (around 60 kgf/cm on M10 steel per ISO 10964) holds against vibration but releases without heat or special tools, unlike high-strength Taftlock 71.
Taftlock 22 is formulated for fasteners up to 6 mm in diameter, making it the right Taftlock grade for small screws, set screws and fine adjusters. For threads between 6 and 20 mm choose medium-strength Taftlock 43, and for fasteners up to 25 mm choose high-strength Taftlock 71.
Taftlock 22 reaches handling strength in about 20 minutes on clean steel at room temperature, develops functional strength in 1 to 3 hours, and reaches full cure in 24 hours. Cure depends on metal type, gap and temperature, so leave the assembly undisturbed until functional strength is reached before returning it to service.
Taftlock 22 has a service temperature range of -55 C to +150 C, so it holds on engine, automotive and electronic assemblies that see both cold starts and sustained heat. Chemical-resistance testing shows it retains full strength in motor oil at 125 C and in brake fluid over 1,000 hours, with high retention in water/glycol.
Taftlock 22 has a shelf life of 2 years when stored unopened in a cool, dry place between 8 C and 25 C. Do not return unused material to the original container, since contamination can affect cure. Wipe the bottle tip clean after each use to keep the nozzle clear.
Taftlock 22 is a purple thixotropic liquid with a viscosity of 1,000 cps at 25 C (Brookfield RVT, spindle 3 at 20 rpm) and a specific gravity of 1.05. The medium-low viscosity flows into small thread gaps, and the purple colour visually distinguishes it from blue Taftlock 43 and red Taftlock 71 on the bench.
No. Taftlock 22 is an anaerobic adhesive that cures only on metal surfaces in the absence of air, so it will not react on plastics or other non-metal threads. Clean the metal fastener of oil, grease and contaminants first, then apply enough product to fill the threads. It performs best in thin bond gaps between close-fitting metal threads.