LOCTITE® 272

Name: LOCTITE® 272
Brand: LOCTITE

Features and Benefits

A red, high strength, medium viscosity, anaerobic-curing threadlocking adhesive with high temperature resistance.

LOCTITE® 272 is a red, medium viscosity, high strength anaerobic-curing threadlocking adhesive with high temperature resistance. It is specially designed for the permanent locking and sealing of threaded fasteners and to withstand temperatures up to 232°C (450°F). The anaerobic adhesive cures when confined in the absence of air between close fitting metal surfaces, and prevents loosening and leakage from shock and vibration. Ideal for the locking and sealing of large bolts and studs.

Medium viscosity
High temperature resistance to 232°C (450°F)
Resists shock and vibration
Seals threads - allows through-hole tapping
High strength

Documents and Downloads

Download TDS

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Technical Information

Breakaway torque, M10 Steel Bolts	23.0 N·m
Chemical basis / base	Methacrylate
Color	Red
Fixture time	40.0 min.
Key characteristics	Thixotropic
Recommended for use with	Metal: steel
Viscosity, Brookfield - RVT, @ 25.0 °C Spindle 4, speed 20 rpm	4000.0 - 15000.0 mPa·s (cP)

How to

Step by Step Guide

LOCTITE Threadlocker Prep Cleaning Illustration

1. Preparation - Cleaning

It is recommended to use LOCTITE® SF 7070 to degrease and clean surfaces prior to applying LOCTITE 272 threadlocker.

LOCTITE Threadlocker Activation Illustration

2. Preparation - Activation

If cure speed is too slow due to passive metals (stainless steel, aluminum and plated metals) or low temperature (below 5°C), use activator LOCTITE® SF 7649 (see cure speed vs activator graph in the TDS).

3. Application

Apply liquid threadlocker to the engagement area. For manual dispensing, the use of a peristaltic handgun or the LOCTITE® Pro Pump is recommended to ensure a consistent application volume.

LOCTITE Threadlocker - Through Hole Application Illustration

4a. Application - Through-Hole

Insert bolt and apply threadlocker to the exposed thread. Assemble nut and tighten to the correct/specified torque.

LOCTITE Threadlocker - Blind Hole Application Illustration

4b. Application - Blind Hole

Apply several drops of liquid threadlocker down the sides of the blind hole filling the lower third. Apply several drops to the bolt.

5. Assembly

Assemble and tighten. If several bolts are being assembled, torque them down to the correct value within the fixture.

LOCTITE Threadlocker - Hand Tool Disassembly Illustration

6. Disassembly - Hand Tools

Disassemble with standard hand tools.

LOCTITE Threadlocker - Disassemble With Heat How-To Illustration

7a. Disassembly - Heat

If disassembly is not possible using normal hand tools, apply localized heat to approximately 250°C. Disassemble while hot.

LOCTITE Threadlocker - Disassemble With Heat Using Hand Tool How-To Illustration

7b. Disassembly After Heating - Hand Tools

Disassemble while hot with standard hand tools.

Hint

For the disassembly of corroded or seized parts, use LOCTITE® LB 8040 Freeze and Release.

Frequently Asked Questions

Prevent vibration loosening, prevent leaks, protect threaded components from corrosion and increase the reliability of mechanical fasteners by using a LOCTITE® anaerobic threadlocking adhesive.

Yes, LOCTITE® anaerobic adhesives and sealants become highly resistant thermoset polymers once cured, making them suitable for a vast number of applications. Consult our online product resources or contact our technical teams for further information.

Yes, these products are all anaerobic adhesives that will function in a similar way. Variations in the adhesive characteristics (viscosity, gap-fill, strength etc.) will make them better suited to certain applications. Consult the product technical data sheets and/or LOCTITE® representatives for further information.