Loctite 263 vs. 270: Sealing Bolts, High strength, Passive Substrates(Stainless Steel, Aluminum & Plated Surfaces)

Loctite 263 vs. 270: What’s The Difference?

Loctite 263 vs. 270: Specs & Uses

Here is the info:

	Loctite 263	Loctite 270
Rating	★★★	★★★★
Datasheet	📥Loctite 263	📥Loctite 270
Description	Medium strength threadlocker	High strength threadlocker
Color	Red	Green
Fluorescence	Positive under UV light	Positive under UV light
Components	1 component, no mixing	1 component, no mixing
Secondary Cure	Activator	Activator
Strength	High	Very high
Breakaway Torque	33 Nm	33 Nm
Max. Operation Temperature	180°C	200°C
Gap Fill	Up to 0.25mm	Up to 0.25mm

My Hands-on Test: Loctite 263

✅Pros: Loctite 263

LOCTITE® 263 is a red, high-strength, primerless threadlocker for permanently locking and sealing bolts, nuts and studs to prevent loosening due to vibration. It works on all metals, including passive substrates such as stainless steel, aluminum and plated surfaces without the use of primer.

Strong Hold

During my testing, the product worked exactly as advertised. It provided a strong hold and dried as expected. Although I haven’t had the chance to assess its longevity yet, I can confidently say that it performs well in the short term.

I had initial doubts about its performance compared to the LOCTITE brand Blue Threadlocker ( blue loctite vs red ), but after using it on three different projects, I can attest that it works exactly as it should. I haven’t encountered any issues with the strength of the bond, and I’ve been able to remove screws and nuts without any problems.

Great Value for The Price

Not only does Loctite 263 deliver on its promises, but it also offers great value for the price. You get a generous amount of threadlocker for a similar price compared to the LOCTITE brand, depending on where you purchase it. I highly recommend giving this product a try, as it might pleasantly surprise you with its effectiveness.

❌Cons: Loctite 263

While the product itself is impressive, I do have a minor complaint about the container nozzle. It tends to clog easily, which can be frustrating when trying to keep it clear between uses. However, this issue doesn’t overshadow the overall performance of the threadlocker.

My Hands-on Test: Loctite 270

✅Pros

I was thoroughly impressed with the results.

Performance

Now, let’s talk about the performance of Loctite 270. It worked exactly as specified within the advertised cure time, just as I expected from a high-quality Loctite product.

It’s worth mentioning that all thread lockers, including those from Loctite and other manufacturers, come in bottles intentionally manufactured in an oversized manner. This allows for adequate shelf life until the specified expiration date, which is typically 24 months after manufacture.

Holding Power

Speaking of holding power, Loctite 270 really does an excellent job of keeping bolts secure. I’ve used it to fix my muffler, and the screws haven’t budged since. It’s great to have the peace of mind that my engine won’t fall apart thanks to this reliable adhesive.

Ease of Removal

Regarding the ease of removal, I must clarify that this product is not meant to be easily removed. It’s like super glue ( b-7000 glue vs super glue) for nuts and bolts. I used it on a front sway bar for my Can-Am, and it has proven to be incredibly effective. The sway bar no longer comes loose, even after jumping, rocking, and racing. I couldn’t be happier with the results. Just keep in mind that once you apply this product, it’s intended to be permanent, so only use it on something you’re certain you won’t need to remove in the future.

❌Cons

I found it to be disappointingly slow in setting compared to the standard red Loctite I’ve used before. It took over 24 hours for it to fully lock, which was longer than I anticipated.