What’s the difference between Loctite 222 and Loctite 222MS
LOCTITE 222 Purple Threadlocker is effective in preventing loosening caused by shock or vibration, while still allowing for convenient disassembly using hand tools without damaging the screw. On the other hand, LOCTITE 222MS is a Mil-Spec Purple Threadlocker with low strength, designed for small screws measuring 1/4″ (6mm) or smaller.
It offers controlled lubricity to achieve precise clamp loads and can be easily separated using hand tools. It finds applications in adjustment screws, countersunk head screws, and set screws on collars, pulleys, tool holders, and controllers. It is particularly suitable for use with low-strength metals such as aluminum or brass.
Loctite 222 Vs 222MS: Specs & Uses
🧪Viscosity
Loctite 222: Low, thixotropic
222MS: High thixotropic putty-like consistency
🆚Key Differences
Glue-All:
– Lower viscosity for easier application
– Higher strength
222MS:
– Much higher viscosity and thixotropy
– Meets Mil-S-46163A
– NSF P1 approved
– Lower strength
🛠️Common Uses
Loctite 222 is suitable for securing metal screws in eyeglasses; used by gunsmiths to prevent tiny screws on telescopic sights from loosening due to vibration; tighten Philips head screws in shower controls.
222MS can be used to lock screws on watch bracelets: Suitable for screws under 1/4″. Purple threadlocker preferred for future removal, while red is ideal for permanent application.
Loctite 222 prevents loosening from shock or vibration, allowing for easy hand-tool disassembly. Loctite 222MS is low strength and suitable for small screws.
Technical Info
My Hands-on Test: Loctite 222
However, I wish I could buy smaller bottles instead of the biggest, since it’s hard to control how much Loctite gets dispensed when using a large bottle.
✅Pros: Loctite 222
Nevertheless, I understand that the larger bottle was the most affordable option at the time of purchase.
Valuable Screws
The main reason I needed Loctite 222 was to prevent the loss of small screws, which are expensive to replace. I’ve dropped screws in dirt and couldn’t find them even with a magnet. With Loctite, I don’t have to worry about losing these screws anymore.
Loctite 222 vs. 243
Loctite 222 has lower strength, suited for applications requiring easy disassembly; Loctite 243 has medium strength for more demanding applications; Loctite 243 has better heat aging and chemical resistance; Loctite 243 provides higher breakaway and prevail torque.
Versatility
For mounting scope rings on my rifles, I’ve used it a lot. It creates a tight lock that won’t let scopes or rings fall out. It’s also easy to remove if needed. Besides refilling my smaller container, I generously shared the remaining Loctite at a local gun store with my friends.
Light Strength
I also use it for other things besides firearms. In the hobby world, some components can’t handle medium strength, as it can strip screws and threads. It’s perfect for these applications, though, because it’s light strength. You don’t have to worry about the screws getting damaged or stripped.
Price and Quantity
Purple Loctite is a great value considering the price and quantity. Henkel makes it, and it’s 50ml for a price that’s usually equivalent to smaller tubes. Being able to have a lifetime supply of this adhesive is reassuring. I even refilled my smaller container and shared the remaining Loctite at a gun shop with friends who were equally impressed.
❌Cons: Loctite 222
While I’m satisfied with the performance of this Purple Loctite, I do have a minor suggestion for improvement. The product photos provided by the seller were a bit misleading, as they showcased the red variant instead of the purple one I received. It would be helpful if the seller could update the photos to accurately represent the product being sold.
FAQ: Loctite 222
Q: Can I use Loctite 222 to tighten a Philips head screw in a shower control (not the faucet handle set screw, but the one below)?
A: I believe it should work fine. I have personally used it to keep parts of black boxes together in 747 aircraft at my workplace. Just ensure that all surfaces are dry before applying the adhesive, and allow it to dry completely before using the shower.
Q: Is Loctite 222 safe to use with plastics, specifically for applications like Kydex holsters?
A: Based on my experience, I have seen this adhesive being used on various plastic applications in the aircraft industry, such as spacers. However, its suitability may depend on the strength of the component being secured.
Q: When using Loctite 222 for firearm screws, do you need to degrease them? Can alcohol be used as a degreaser, and is a primer necessary?
A: It is acceptable to degrease both sets of threads, and alcohol is sufficient for this purpose. Ensure that all traces of degreaser are removed before applying Loctite. As for a primer, I have never used it for this level of retention, as the intention is to allow for disassembly.
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My Hands-on Test: Loctite 222 MS
Vibrations aren’t a problem, but it’s easy to loosen.
✅Pros: Loctite 222 MS
When I need to secure bolts on my Harley or grip nuts on my pistols, I turn to the Blue 243.
Small Screws
Loctite 222MS, specifically designed for small screws, is perfect for those pesky screws that tend to fall out from the bottom of computers, such as Apple MacBook Pros. While the standard Loctite products are better suited for larger screws and automotive applications, the 222MS is perfect for small screws that may require removal for service.
Compound Bow
For my compound bow, the purple Loctite worked great. I was able to keep the screws in place with just the right amount of strength. Since I started using it, I’ve never had an issue with loosening bolts. It’s also easy to remove when you need it. The purple Loctite isn’t super strong, but when it’s torqued properly, it usually stays in place.
❌Cons: Loctite 222 MS
Loctite 222 MS provides a solid hold while still allowing for future removal if needed. However, for situations where I want to ensure absolutely no movement, I rely on
Loctite Red 262. It requires significant torque and heat to remove, so it’s crucial to understand its strength and removal process. I advise against using it on screws you plan to remove later.
FAQ: Loctite 222 MS
Q: Can Loctite 222 MS be utilized for screws on watch bands and similar items?
A: Certainly! It is suitable for any fastener measuring less than 1/4″. While the blue variant works too, I personally prefer the purple one if you anticipate the need to remove the screw in the future. However, if you have no plans of ever removing the screw, the red variant is recommended. For lightweight fasteners like those found in RC airplanes/helicopters or small firearm components, I opt for the purple variant.
Q: Should I reapply this after removing a fastener? Or can previously cured Loctite 222MS be reused multiple times on the same fastener?
A: It is advisable to reapply the threadlocker after removing a fastener. If you require a reusable option, I suggest considering vibratite.
Q: If I use it on 5mm bolts securing the battery to my bike’s frame, will it be possible to remove them? The bolts are currently loose, and I need to tighten them. Should I use the blue variant instead?
A: The purple variant is specifically designed for small screws and hand-tightened applications where screws tend to loosen due to vibrations. If you intend for the 5mm bolts to be permanently secured and plan to use hand tools for disassembly, I would recommend using the blue Loctite.
I’m Ronald Stevens, a Mechanical Engineer obsessed with adhesives, glue, and all things sticky! My passion began in childhood when I’d always be the one playing with glue during arts and crafts. And I’d spend hours researching and experimenting. Happy reading, and remember: stick with the best, and you’ll never be stuck in a mess!
Is Loctite 222 MS the recommended product by Rolex for securing bracelet screws?
Yes, it is the threadlocker used by Rolex for this purpose.