Loctite 248 Vs. 242 – Two trusty tubes from the medium-strength section of the adhesive aisle. Though both provide robust bonding power, they aren’t identical twins.
So whether you’re anchoring equipment, assembling parts, or repairing materials, read on to discover the perfect middle-ground Loctite for your next DIY adventure. Let’s gel on the same page regarding 248 and 242!
Loctite 248 Vs. 242: What’s The Difference?
The key difference between Loctite 248 Vs. 242 is:
📝 My Hands-on Test of Loctite 242
✅Pros
Having had a positive experience with Loctite 242 in the past, I decided to trust the brand once again when I needed to install optic plates on four different pistols. True to its reputation, the Loctite product worked flawlessly, ensuring a secure and stable fit for my optics. With this reliable adhesive, I can confidently rely on my pistols for precise aiming and consistent performance.
One thing that caught my attention during my experience with Loctite was their packaging. Specifically, the “blue” threadlocker came in a red tube. It was a bit confusing at first, and it almost felt like they were playing a prank on their customers. However, despite the packaging mishap, I have to admit that the product itself is great. It performs exceptionally well, serving its purpose effectively.
In terms of quality and reliability, Loctite’s “Blue (removable)” threadlocker is the go-to choice. It’s important to note that, despite being packaged in a red tube, this particular threadlocker is indeed the removable variant. Its strength strikes the perfect balance, ensuring a secure hold while still allowing for disassembly when needed. I appreciate this versatility, as it gives me peace of mind knowing that I can make adjustments or remove components if necessary.
❌Cons
Tried to push a pin into the top to open it as I only wanted a very small amount of tightener for a small screw, but that was impossible without resorting to heating the pin. So after cutting the smallest part of the tube top, I had too large of an opening.
FAQ of Loctite Threadlocker Blue 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.
Q: Can Loctite Blue 242 be used for securing glasses, particularly the screws that hold the lenses in place?
A: No, Loctite Blue 242 is not suitable for use on glasses. For small screws like the ones holding lenses in place, I recommend using Loctite 222 instead.
Q: I’m planning to join two 20′ pieces of pipe together for a weather station pole that will be exposed to outdoor conditions. Which Loctite product would be most suitable?
A: In your case, I would recommend using the Blue Loctite, which is designed for larger gaps like pipe threads. It has a thicker consistency. However, if you anticipate the need to disassemble the pipe in the future, I suggest using regular pipe dope paste. If the pipe is meant to stay permanently assembled, no additional product is necessary, but be cautious of potential rusting.
Q: Does Loctite Blue 242 harden? I applied it to a thread for testing, but after 24 hours, it was still in liquid form and could be easily removed with a paper towel.
A: Yes, Loctite Blue 242 does harden. Before using it, make sure to shake the bottle well. Apply a drop of the product to the fastener threads, ensuring you use a minimal amount. Tighten the fastener to prevent loosening, and wipe off any excess while it’s still wet. Remember to cap the tube tightly. If you need to reopen the tube in the future, you can use pliers and a pin or small nail. Loctite Blue 242 has proven effective for keeping fasteners secure while allowing for future removal if needed.
Q: Can I apply this to an already tightened bolt without removing it?
A: Loctite Blue 242 is intended for use during installation and not for already assembled or installed bolts. I would recommend removing the bolts and re-installing them with Loctite Blue 242 for optimal effectiveness.
Q: Will this work on stainless steel bolts?
A: Loctite Threadlocker Blue 242 is particularly suitable for applications involving less active substrates like stainless steel and plated surfaces, where disassembly may be required for servicing. Have a great day!
Q: What is the shelf life of the Blue 242? If I open it, use it once, and then store it, how long will it remain effective?
A: According to Loctite, the shelf life of Blue 242 is two years. However, many users have reported it lasting longer. I have personally used a tube that I opened four years ago, and it still appears to work well.
Q: Will Loctite Blue 242 work for securing a bolt in a power rear gate? I had to replace the entire motor because the bolt came out and stripped the threads.
A: No, Loctite Blue 242 will not work in that situation. I recommend using Red Loctite instead(See what is the difference between loctite 515 and 518). Ensure that the bolt is clean and free of any oil residue before applying the Red Loctite. Allow it to dry for at least an hour, or longer if possible.
Q: Is it safe to use this as a denture adhesive?
A: Yes, Loctite Blue 242 can be used as a denture adhesive. I have personally used it for ten years now, although I must say that it does affect the taste of corn.
Read More: loctite 242 vs 243
📝 My Hands-on Test of Loctite 248 – Loctite 242 equivalent
✅Pros
Compared to the traditional Loctite in a small squeeze container, the glue stick version is much easier to use. It eliminates the mess typically associated with the application and allows for easy access, even for the smallest screws. I appreciate its simplicity and efficiency, as it ensures that every screw is properly secured without any unnecessary fuss.
Now, let’s talk about the function of Loctite. If you’re already familiar with it, you know that its primary purpose is to prevent screws from loosening on their own. The blue variant is not permanent, allowing for adjustments or removal of the screws with sufficient force. On the other hand, the red version is intended to be permanent and can be challenging to remove. For most applications involving pocket knives or small machines, the blue Loctite is ideal as it effectively holds the screws in place without any noticeable failures. It also offers the added benefit of easy removal for future maintenance, such as oiling up a knife pivot.
The application process is straightforward—I can simply dip the screw into the glue stick to get precisely the amount needed. This eliminates the problem of squeezing out excess adhesive and wasting it, which can sometimes occur with other container designs. In short, if you’re looking for a reliable way to keep your screws in place until you manually unscrew them, I highly recommend this glue stick version.
❌Cons
While the glue stick is excellent for personal use, it may not be the most suitable option for heavy-duty applications. For instance, in a truck shop where Loctite is used almost every day, the small tube size might prove insufficient. These tubes are comparable to the size of a lipstick tube, which can be limiting for high-demand environments. However, for those who don’t require large quantities of Loctite, this compact packaging remains perfectly adequate.
One minor drawback I have noticed is that the glue stick version has a limited shelf life of only six months. While this may not be an issue for occasional users, it’s something to keep in mind for those who rely on Loctite frequently. However, I have found that the product remains highly effective within its shelf life, so it hasn’t posed a significant problem for me personally.
FAQ of Loctite 248
Q: Is Loctite 248 equivalent to Loctite 242?
A: It is mostly similar. The blue variant is essentially the blue compound in a paste form.
Q: Can Loctite 248 damage pleather or rubber washers? I intend to use it to secure a hex bolt on an expensive computer chair.
A: You should apply the product only on the threads of the hex bolt, not on the washers. Use a small amount on the threads at the bottom of the bolt, and as you screw it in, the product will spread and coat all the threads. This method should work well without causing any damage.
Q: Has anyone mistakenly used Loctite 248 as chapstick on their lips?
A: Yes, I have done that once, and it worked wonders.
Q: Is it suitable for use in below-freezing temperatures?
A: There should be minimal to no impact on performance when used in below-freezing temperatures.
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Q: How long does the stick version of this product remain effective? I don’t use it frequently.
A: According to a Loctite representative, the shelf life of the “stick” version is four years from the date of manufacture. The manufacturing date can be determined from the batch number, where the second and third series of numbers/letters indicate the date. For example, if the batch number is L3 7 B AC569, the number 7 represents the last digit of the year, and the letter B indicates the month (B for February). However, it’s unclear whether 2017 would be represented by 7 or 17.
Q: Does Loctite 248 require a primer when used on stainless steel, similar to Blue 242?
A: I have successfully used both this product and Blue 242 on stainless steel without a primer, and they worked just fine. I hope this information helps.
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!
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