What’s the difference between Loctite 242 and Loctite 262?
You should use Loctite 242 for small fasteners and applications that require easy disassembly. Cure time is faster, but strength is lower. For fasteners with high strength and permanence, Loctite 262 is the way to go.
loctite 242 vs 262: Specs & Uses
🌡️Temperature Range
Loctite 242: -65F to 300F
262: -54C to 149C
🆚Gap Fill
Loctite 242: Small gaps
262: Medium gaps
🛠️Common Uses
Loctite 242 can be used to secure chairs with loose or wobbly arms; secure lens retaining rings, eyepieces, and optics kits; prevent bolts and nuts from vibrating loose in various parts of your vehicle, such as pellet gun bolts, rolling floor jack bolts.
262 is suitable for use on motorized bike kits to secure fasteners.
Technical Info
Revew of Loctite 242
✅Is Loctite 242 Gasoline Friendly?
Let’s start with a common query: Is Loctite 242 gasoline friendly? Absolutely – it’s non-flammable once cured, making it safe for use on small engine parts exposed to gasoline.
It works on all thread sizes from 5/32 inch to 3/4 inch. It provides a medium strength bond that’s perfect for most applications where vibrations and shock are a problem. After applying, I usually get handling strength in a couple hours.
Keep in mind that this isn’t a permanent locking compound. Although it bonds metal threads very well, it can still be disassembled if necessary using standard hand tools or by applying some localized heat. Compared to permanent locking, this makes it really versatile.
Crucially, Loctite 242 must be applied before inserting and tightening the fasteners to specifications. It cannot be used to repair already loose components.
In terms of material compatibility, I’ve had excellent results using it on metal-to-metal applications like bicycle parts – handlebars, brake levers, pedals, etc. However, its bonding ability with plastics like polypropylene (PP) and polyethylene (PE), or its acid resistance, is uncertain. For such specialized needs, consulting Loctite directly is advisable.
Low Recaro Mounts Setup and Installed
After the 242 loctite cures ill pull them back out so i can remove the carpet. Might as well pickup 10-15lbs of dry ice pellets.
Scaring Wheel
Usually, lin oil is enough…. But I guess that loctite 242 will be a good shot on that scaring wheel.
Where Loctite 242 really shines is preventing loosening from vibrations and temperature fluctuations. I’ve relied on it for everything from outdoor swing canopies (withstanding extreme heat and winds) to securing light bulbs in their sockets when thermal cycling is an issue.
Now, a key difference between the blue 242 and red Loctite versions is their strength and permanence. The red formula is the highest strength option, requiring heat for disassembly – making it ideal for permanent applications. Blue 242, on the other hand, is a medium-strength threadlocker that allows disassembly with hand tools when needed.
Loctite 242 vs. 271: Securing Chair Arms, Loose GPU Screw & Rolling Floor Jack Bolts
For application, I put a few drops about 3 threads back from the bolt/screw start, as well as a little in the middle. This ensures the liquid works its way around the threads during tightening.
❌A Couple of Cautions
I wouldn’t recommend using 242 on nylon fasteners or anything involving cement bonding. There are likely better suited products for those applications. Additionally, while it’s okay for light bulb sockets, using it on coaxial cable connections could potentially interfere with grounding/shielding and reception.
As for any painted surfaces, I simply avoid applying threadlockers there, as they could potentially damage the finish when being removed later.
The liquid consistency is quite runny, which some find makes it trickier to apply precisely compared to a thicker gel. But overall, I’ve found the formula highly effective.
When it comes to transportation, solid threadlockers are generally permitted in carry-on luggage. However, to avoid any TSA issues, I prefer mailing products like 242 ahead to my destination when traveling.
FAQ: Loctite 242
Q: Should I apply Loctite Blue 242 to the doorknob set screw before or after screwing it in? Do I put a drop on top?
A: It’s best to apply this to the screw threads before screwing it in. Make sure to use a very small amount, and apply it before the screw is fully inserted. Remember, less is more in this case.
Q: What’s the proper way to open the sealed tube? Can I simply poke a hole at the top?
A: To open the sealed tube, I would recommend using a thumbtack, safety pin, or a similar object to gently poke a hole into the flat tip of the tube. This method allows for better control and ensures droplet-sized application.
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My Hands-on Test: Loctite 262
✅Pros: Loctite 262
I needed Loctite 262 thread sealer to install a Harley part, and true to its reputation, Loctite worked great. It provided the security and reliability I needed for the job.
Perfect for Small Projects
If you’re working on small projects like securing bearings in slip-fit fidget spinners, Loctite 262 thread sealer is perfect. The small vial contains just the right amount, and there’s no need to invest in a large expensive bottle that will dry up and go to waste. A little goes a long way, so use it sparingly and make the most out of it.
Restore Threads
If you’re unable to obtain the original parts, here’s an alternative method to restore threads on a side-by-side shotgun. Follow these steps:
- Drill out the damaged hole.
- Tap the newly drilled hole to accommodate a helicoil insert.
- Apply Loctite 262 (red) to ensure a secure fit.
- Thread the helicoil insert into the tapped hole.
- Trim the insert until it is flush with the surface.
- Use a Cratex wheel to blend the trimmed insert for a smooth finish.
❌Cons: Loctite 262
However, I did notice that it ran out quite fast, and considering the price point, I would have appreciated a bit more product.
FAQ: Loctite 262
Q: Which threadlocker should I use for guns, such as scope mounts? Should I opt for Blue 242 or one of the red options? There are numerous choices available, excluding high-temperature variants.
A: If you intend to use threadlocker on a scope mount or rings, I recommend sticking with Blue 242. See my test here: Loctite 242 vs. 271 . It is crucial to follow the manufacturer’s torque settings when setting up a scope. I would also suggest investing in a reliable torque wrench to ensure that you don’t overtighten the hardware.
Q: How can I loosen the threadlocker once it’s applied?
A: To loosen the threadlocker, you will need to apply heat using a hot torch or a similar method. Red Loctite 262 is not easily removable, so if you anticipate disassembly, consider using blue threadlocker instead.
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!
Feel free to contact me and join our discussion:
Can Loctite Blue 242 be used for securing glasses, particularly the screws that hold the lenses in place?
No, it is not suitable for use on glasses. For small screws like the ones holding lenses in place, I recommend using Loctite 222 instead.