Loctite 620 retaining compound – 50ml

Loctite 620 retaining compound – for high-temperature cylindrical bonding

Loctite 620 retaining compound is a high-strength adhesive designed to secure cylindrical assemblies exposed to elevated temperatures. Its green color identifies it easily among other LOCTITE products, and its performance in extreme heat (up to 450°F / 232°C) makes it ideal for high-demand industrial, automotive, and mechanical applications.

Whether you’re bonding bushings, bearings, or sleeves, Loctite 620 retaining compound offers unmatched holding power and thermal resistance.

H2: Why choose Loctite 620 retaining compound?

When you need superior performance in high-heat environments, Loctite 620 retaining compound delivers. It fills gaps between metal surfaces and cures to form a rigid, vibration-resistant bond that can withstand intense thermal cycling.

Key advantages:

• High temperature resistance: Up to 450°F (232°C)

• High strength: Prevents loosening and slippage under load

• Gap filling: Handles diametral gaps up to 0.015″ (0.38mm)

• Thermal cycling resistance: Maintains bond even with fluctuating temperatures

• Prevents fretting and corrosion: Ideal for rotating or press-fit assemblies

H2: Applications of Loctite 620 retaining compound

This product is widely used in the assembly of press- and slip-fit parts where high strength and temperature tolerance are critical.

Common uses:

• Bearing retention in engines and pumps

• Sleeves, shafts, and rotors

• Automotive transmissions and gearboxes

• Electric motors and industrial equipment

• Heavy-duty rotating machinery

Loctite 620 retaining compound is frequently used in both OEM and maintenance environments for its consistent and proven performance.

H3: How to apply Loctite 620 retaining compound

1. Clean both surfaces with a solvent to remove oil, dirt, or residues.

2. Apply a uniform layer of Loctite 620 retaining compound to the shaft and/or housing.

3. Assemble the parts with a slight rotating motion to distribute adhesive evenly.

4. Allow 10–15 minutes for handling strength; full cure in 24 hours.

Note: Primer (LOCTITE 7649 or 7471) can be used to speed up cure time or for inactive metal surfaces.

H2: 50ml format – ideal for industrial and workshop use

The 50ml bottle offers the perfect volume for ongoing operations, whether in a factory floor, automotive shop, or mechanical workshop.

• Clean nozzle for controlled dispensing

• Enough product for multiple assemblies

• Compact and portable packaging

H3: LOCTITE – the professional standard for retention adhesives

LOCTITE has earned global trust as a top manufacturer of industrial adhesives. Loctite 620 retaining compound is part of a comprehensive product line tailored to meet the demands of professional engineers, mechanics, and technicians.

It meets or exceeds performance expectations in harsh mechanical and thermal environments where failure is not an option.