Loctite 262 vs. 263 vs. 271: The hardcore glue for hardcore DIYers. One little dab will bond your bolts into perpetuity. But with these glues vying for your affection, how’s an amateur home improver to choose?
Who knew tiny tubes of glue could be so complex and intriguing? By the end of this article, you’ll be a threadlocker connoisseur, ready to hold court at your next dinner party on the art of proper screw fastening. Let’s dive in!
Loctite 262 vs. 263 vs. 271: What’s The Difference?
The key difference between Loctite 262 vs. 263 vs. 271 is:
- 263 is a high strength, with good oil resistance and high-temperature rating, suited for heavy-duty applications
- 262 is medium-high strength, thixotropic to reduce migration, suited for large bolts and studs
- 271 is medium strength designed for easy removal, for fasteners up to 1″ diameter
📝 My Hands-on Test of Loctite 263
✅Pros
When it comes to securing the timing sprocket on a diesel VW, precision is crucial. Even the tiniest bit of looseness can lead to a broken key. However, with the application of Loctite 263, I was able to eliminate any slop completely. This compound proved to be far superior to typical silicones in “toothpaste” type tubes, as recommended by a mechanic friend at John Deere. It provided a sturdy and dependable hold, ensuring there were no leaks even after 10,000 miles on the rebuild.
It proved to be the ideal replacement for Loctite 270, which is not readily available in the US. This permanent thread locker worked wonders during the rebuild of air-cooled Porsche engines, where it was crucial to have a secure hold that could only be removed by heating the bolt to over 350 degrees.
After comparing Loctite 263 to other similar products, I found it to be highly comparable to the standard red thread locker without an oil sealer. Considering the price point, it is certainly a worthwhile product to consider for your projects.
❌Cons
Finding Loctite 263 in local auto parts stores can be quite a challenge. However, I managed to get my hands on it through an online purchase. Although the shipping was delayed, the product itself lived up to its reputation. The reclosable top added convenience, and the bottle size was perfect, offering great value for the money spent.
📝 My Hands-on Test of Loctite 262
✅Pros
Speaking of applications, I recently used Loctite 262 on threaded parts in my car, and it proved to be the best product for the job. It provided a solid joint and prevented any loosening of the threaded parts. I have also used it on gas torches, where it effectively kept the spokes from coming loose, even though other lower-grade thread lockers failed in this regard. It’s important to let the Loctite sit and dry before using the equipment.
In terms of performance, the Loctite thread locker held together well when I used it on my rifle. It provided a secure hold and prevented any loosening of the components. The application process is simple, and the included applicator helps prevent overuse or spills. It’s a great buy, especially considering the convenient bottle size and the quick snap-close dispense valve.
Switching to the large bottle of red Loctite was a game-changer for me. The blue Loctite didn’t provide the same level of strength I needed, but the red Loctite worked incredibly well. The larger bottle allows me to use it more liberally without worrying about running out, as I had to with the blue Loctite.
❌Cons
One minor issue I have noticed is with the packaging. It would be helpful if Loctite packaged the blue thread locker in a blue bottle to make it easier to identify the product and avoid any confusion. Additionally, I found it peculiar that Amazon covered the front label of the bottle with their own label, which is difficult to remove completely. These are minor inconveniences, but worth mentioning.
FAQ of Loctite 262
Q: Which option would be suitable for a motorized bike kit?
A: The choice depends on the type of fastener you are using, not the vehicle itself. Red threadlocker offers semi-permanence, while blue threadlocker allows for easier removal of the fastener later.
Q: Is a primer required when using Loctite 262? If so, which one should I use?
A: No, you don’t need a primer. Simply clean the threads with brake cleaner or isopropyl alcohol cleaner.
Q: Will Loctite 262 dry clear, or will the red color be visible?
A: The color of this product will not change, and it will remain clear.
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: Can Loctite 262 be used in fuel systems, specifically with diesel or gasoline engines?
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A: It t is designed to be applied to dry nuts and bolts free of solvents. Use your own judgment when considering its use in fuel systems.
Q: Which threadlocker should I use for guns, such as scope mounts?
A: Personally, I prefer using Red Loctite 262 on my scope mounts and iron sights. I have been using it for many years and have never been disappointed.
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.
Q: Is this the most heavy-duty picture hanger available? There are other red pictures in the 27x part number range, but there is no description of their differences.
A: This picture hanger is one of the most heavy-duty options available.
📝 My Hands-on Test of Loctite 271
✅Pros
I rely on the Loctite threadlockers to secure leather straps with Chicago screws. It has significantly improved the longevity of our products. I have different variations of Loctite threadlockers to cater to specific usage scenarios. They allow us to maintain our manufacturing process with minimal changes, and they perform exactly as advertised.
I also use Loctite 271 when replacing the screws on my outboard water case. Given the significant vibrations experienced by Johnson outboards, I wanted a reliable solution to ensure the screws remained secure. The thread-locker worked perfectly, and I didn’t encounter any issues. I even had to remove one screw temporarily, and it came out without a problem.
Red Threadlocker 271 is a high-strength adhesive designed for heavy-duty applications. It provides a holding power of 3,000 psi on slip and press fit assemblies. It is particularly useful for locking studs and press fits securely. If you ever need to unscrew anything secured with the red threadlocker, make sure to use the blue version.
It always been reliable, including this red variant. It is easy to use, and once applied properly, the bonded surfaces will not come apart. I have used it on various parts, such as flywheel bolts and butterfly screws in intake manifolds, and they have never loosened after application.
I appreciate the strength of this threadlocker when properly applied. It ensures that screws on my scope mount blocks remain secure without any chance of them coming loose. While it is possible to remove the screws if needed, it requires considerable effort and sometimes even heat. This is exactly what I want for critical applications where I don’t want any chance of the mount screws coming loose.
❌Cons
While the product itself is good, the packaging could be improved. It should clearly indicate that it is a liquid, as I was expecting a gel-like consistency. I accidentally dispensed more than I intended, and once it sets, it becomes challenging to remove. A redesign of the packaging, including a warning about its liquid nature, would be beneficial.
FAQ of Loctite 271
Q: Is Loctite 271 suitable for installing a gun sight, or should I consider something else?
A: It might be too heavy-duty for the task. This particular product, Loctite 271, was designed for larger threads with a 3/8+ hold. Using it on smaller threads, such as a scope mount for a gun sight, could make it extremely difficult to remove in the future due to the limited application of heat and torque. I would recommend using Loctite Blue, which is specifically designed for smaller threads.
Q: Does this particular product require the use of a primer? The fourth image on Amazon seems to suggest so, but the instructions don’t mention it. I’m working with stainless steel and aluminum.
A: In my experience, I didn’t need to use a primer with Loctite 271. I used it on steel threads without even cleaning them. Once applied, the product hardened within minutes. Just to be safe, I waited 24 hours before using the assembled parts. It’s an excellent product that I’ve been using in the automobile repair industry for over 30 years.
Q: I have a problem with a locking nut on my sink faucet that keeps coming loose and causing the faucet to wobble. Would Loctite 271 be suitable for securing it?
A: Oh, no! I wouldn’t recommend using Loctite 271 for your faucet. It is intended for applications involving extreme vibration or situations where a loose bolt or nut could be extremely dangerous. For your faucet, the blue Loctite 242 should be sufficient. If you were to use the red Loctite, you would need significant heat and force to remove the nut in the future, which could cause damage if you need to replace the faucet.
Q: If Loctite 271 is opened and used, how long will it remain fresh and usable?
A: The shelf life of unopened Loctite 271 is two years from the date of manufacture. Once opened, the product remains stable due to its exposure to oxygen. It is packaged in a “breathable” plastic bottle, so there is no change in shelf life once it has been opened.
Q: Can I remove my lug nuts after using Loctite 271?
A: Loctite 271 is not as permanent as you might expect. I have successfully removed lug nuts with Loctite 271 applied, and I didn’t need to apply heat or excessive force. However, it does provide a strong bond between threaded metal parts.
Q: Would Loctite 271 be suitable for securing a muzzle brake on a rifle?
A: I would recommend using Loctite 271 before assembling the muzzle brake. It can provide additional security and stability.
Q: Can I use Loctite 271 for securing a Traxxas Slash 4×4 high pinion gear?
A: I have been using Loctite 271 for over 10 years on various applications, and I believe it would work well for you. I have used it on bolts to attach ring gears, and I think it would be very effective in your case. Thank you for your question.
Q: Is Loctite 271 effective for securing screws on the inside of a self-cleaning oven door that keep coming loose?
A: I would advise against using Loctite 271 due to the high heat generated during the self-cleaning process. Loctite 271 requires a temperature of 475 degrees Fahrenheit to release, which is per design. The oven can reach temperatures higher than that during the preheat or auto clean cycles. As long as the oven never exceeds 475 degrees, the product should hold tight. Personally, I love using this stuff.
Q: Can I use Loctite 271 on wood cabinets?
A: I doubt that Loctite 271 would work on wood or porous materials. Instead, I would recommend using wood glue (See best adhesive to attach wood to mirror). Apply the glue and screw in the bolt once it has almost hardened.
Q: Will Loctite 271 work for spark plug inserts? I need something that can withstand high heat but don’t want to spend $50 on the 2640.
A: Based on my experience, Loctite 271 requires heating bonded bolts up to 482 degrees Fahrenheit to separate them. While I’m unsure of the average temperature for spark plugs in an engine, I used Loctite 271 in a cold application.
Q: Has anyone used Loctite 271 on their guns? I need something to secure the barrel to my upper receiver and I’m wondering if this or the blue variant is sufficient.
A: I used the bluevariant of Loctite for securing scope mounts on firearms, and it worked well. However, for securing the barrel to the upper receiver, I recommend consulting with a gunsmith or reaching out to the manufacturer of your firearm for their recommendations on the appropriate threadlocker to use. They will have specific knowledge about the materials and specifications of your firearm and can provide the best guidance for your particular application.
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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