Loctite 262 Vs 271: Fully Compared

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Threadlockers are important to a great extent, and while there are many of them out there, the Loctite brand notably makes some of the best ones to use for your car. Loctite 262 and 271 are two of the brand’s finest “Red” threadlockers with outstanding properties.

Loctite 262 vs 271 comparisons is more about expanding on the curing time and glue capacities of the two threadlockers. Loctite 262 falls in the Red category of Loctite threadlockers – the same category as Loctite 271. Both have high adhesiveness and good resistance.

But while Loctite 262 and 271 are in the same category, they are quite different to an extent, especially in application – the surface where they should be applied.

Loctite 262 Overview

Thread Sealant,# 262 thread locker,Med to high
  • Sold as 1 Bottle
  • Red threadlocker is ideal for use on thread fasteners. Container size: 50 ml. Chemistry: (meth-)acrylates (monomeric). Curing method: anaerobic.
  • 1.69 fl. oz. bottle for easy application. Color: Red. Media carrier: 100 % liquid and paste. Resistance: Corrosive process, leaded petrol, brake fluid, acetone and ethanol.
  • Permanent, thixotropic formula can be used on most metal surfaces. Temperature range: -65 - 300 deg F. Specifications met: NSF International Non-Food, American Bureau of Shipping (ABS), Canadian Food Inspection Agency (CFIA), Military Specification.
  • Container type: Bottle. Torque: 189 in-lb breakaway, 275 in-lb prevail. RoHS compliant.

The Loctite 262 is a super threadlocker recommended by many auto enthusiasts, and it serves perfectly well for the purpose. It is one of the best-selling products of the Loctite brand, and you apply it to any metallic surface.

Loctite 262 offers superior chemical resistance and thixotropy viscosity and shines under UV light to allow monitoring. To remove Loctite 262 after the application is a bit tough, you’d need to use high heat. A lot of people go for this Loctite threadlocker because it is cheaper and works well too.

Common Applications: Mostly used on ring gears, cylinder block bolts, and transmission shaft bolts.

Loctite 271 Overview

Loctite Threadlocker, 50ml
  • Low viscosity thread locker for fasteners up to 1 in diameter
  • Permanently seals threaded fasteners
  • Easy to apply and use
  • Country of origin: United States

Similar to Loctite 262, Loctite 271 is a high-strength threadlocking adhesive. It has low viscosity, which means it flows slowly when applied to any surface. The Loctite 271 is also part of the Red Loctite adhesives meant to be applied onto metallic surfaces.

This threadlocker is a bit more expensive than the 262 version in some stores. It is methacrylate-based and fluoresces under UV light for easy monitoring. Loctite 271 takes time to settle, and removing it can be quite a tough action.

Common Applications: Mostly applied to press fits, wheel studs, and shock absorber mounts.

Loctite 262 Vs 271: Comparison

ProductLoctite 262Loctite 271
Fixing TimeSteel: 15 min Brass: 8 min Stainless Steel: 180 minSteel: 10 min Brass: 5 min Stainless Steel: 15 min
Maximum Heat300°F300°F
ApplicationSuitable for all metal fastenersSuitable for all metal fasteners
PriceCheck PriceCheck Price

The 262 threadlocker is a general-purpose, high-strength adhesive that takes a reasonable amount of time to settle in and cure. It can tolerate minimal contaminations of industrial oils and vibration. The outstanding thixotropic, low-viscosity nature of this threadlocker makes it stand out from its alternatives.

On the other hand, the Loctite 271 threadlocker is equally a high-strength, low-viscosity adhesive made with methacrylate, and it fluoresces under UV light.

It settles much faster than the 262 version and can tolerate slight contaminations of industrial oils. Thanks to its gluing strength and high vibration resistance, you can use this threadlocker for all metal fasteners.

Choosing between Loctite 262 and 271 depends on your preference and what you’re trying to glue. Apparently, the Loctite 271 is best for heavier-duty applications – even though the 262 version can still come in handy for such applications.

How Do You Apply Loctite Threadlocker?

Difference Between Loctite 262 and 271

Whether you’re applying the Loctite 262 or Loctite 271, hereunder are the right procedures to follow.

  • Clean out the surface, and ensure it is dry and there’s no grease on it
  • Read the label or pamphlet included in the threadlocker’s packing for any special application method
  • Apply the threadlocker evenly throughout the cleaned surface
  • Assemble the fastener and allow the threadlocker to settle in and cure

How Do You Remove Threadlocker?

Most times, when Loctite threadlockers are applied, they are meant to be a permanent solution. But sometimes, you may need to remove the threadlocker, and here’s how to go about it.

  • Heat the fastener (where the threadlocker is applied) for some minutes
  • When it looks like the fastener has loosened a bit, use a wrench to loosen it further and remove the bolt
  • If you need to reapply a new threadlocker, ensure to clean the bolt and nut very well before the application

Frequently Asked Questions

How Many Types of Loctite Threadlockers Are There?

Loctite makes different threadlockers across the three different threadlocker categories: Blue, Red, and Green. Loctite 262 and 271 are in the Red category, meaning they have high strength and are suitable for all metallic surfaces.

What’s The Difference Between Loctite 262 and 271?

Loctite 271 and 262 are pretty much very similar to each other; you won’t easily find a difference between the two. However, the 271 cures faster than the 262, and the viscosity is also thinner – probably, these are the only differences between the two, or well, maybe you could add the price difference.

Does Loctite 262 or 271 Need Primer?

You don’t need to apply a primer before applying either of these Loctite threadlockers. You just need to properly clean the surface – ensuring there’s no grease or any contaminant on the surface.

What More?

This Loctite 262 vs. 271 comparison article expands on the features and strengths of Loctite’s most durable threadlockers. You can purchase these threadlockers from online stores or offline stores.

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