Select Your Region
LOCTITE® 660™
LOCTITE® 660™ is a high-strength, quick metal retaining compound designed for bonding cylindrical metal assemblies in the automotive, manufacturing, and machinery industries. It is capable of withstanding extreme conditions, creating a durable, long-lasting bond.
- Manufacturer: Henkel
- Product Line: LOCTITE® Retaining Compounds
- Product: LOCTITE® Large Gap Retaining Compounds
- Industries: Adhesives | Building & Construction | Maintenance, Repair, Overhaul | Metal Processing & Fabrication
- Authorized Countries: Canada | Mexico | United States
Note: Product Fulfillment Provided by the Producer
Note: The producer provides fulfillment and controls personal data. ChemPoint mediates to share data with the producer.
Documents
Overview
LOCTITE® 660™ high-strength retaining compound is recommended for use as a powerful adhesive for applications that require exceptional bond strength and durability. It is specifically formulated to bond cylindrical metal assemblies, providing a secure, permanent bond that withstands extreme conditions. It is particularly effective for joining parts that have loose fits or cylindrical interference fits, as it fills gaps between mating surfaces. This anaerobic product possesses gap cure characteristics, bonding gaps up to 0.50 mm when confined in the absence of air, with the rate of cure depending on the bondline gap.
Specifications
Chemical Type: Urethane methacrylate
Appearance (uncured): Metallic grey paste
Fluorescence: No
Components: One component – requires no mixing
Viscosity: High
Viscosity @ 25°C, mPa·s (cP), Spindle TB, speed 0.5 rpm: 1,000,000 to 2,000,000
Viscosity @ 25°C, mPa·s (cP), Spindle TB, speed 5.0 rpm: 150,000 to 350,000
Cure: Anaerobic
Secondary cure: Activator
Strength: High
Specific Gravity @ 25°C: 1.13
Specific Heat, kJ/(kg·K): 0.3
Elongation, at break, ISO 37, %: <2
Features & Benefits
- Quick metal retaining compound and threadlocker
- High strength
- Fills bond gaps up to 0.5 mm
- Maximum strength at room temperature
- Cures when confined in the absence of air
- Prevents loosening and leakage from shock and vibration
- Robust curing performance
- High viscosity
- Prevents metal fretting and corrosion
- Anaerobic
- Non-running
Problems Solved
Backlash in worn assemblies Loosening and leakage from shock and vibration The need for remachining to repair equipment Inability of adhesive to fill difficult-to-reach cracks and crevices
Applications
Bonding of cylindrical parts Restoring correct fits on worn shafts, spun bearings, and damaged keyways Locating pins in radiator assemblies Locking bushings and sleeves into housings and on shafts Repairing worn machine parts
Related Applications
Adhesives
Building & Construction
Maintenance, Repair, Overhaul
- Assembly & Run-in
- Bearings
- Electric Motors
- Gear Boxes
- Machining
- Noise, Vibration, Harshness
- Pumps
- Threads & Thread Connections
- Valves, Packings, Seals & O-Rings
Related Chemistries
Related End Markets
Maintenance, Repair, Overhaul
- Facility Infrastructure
- General Industrial
- Heavy Industry
- Metal Processing & Fabrication
- Transportation
Related Functions
Adhesives
Building & Construction
Maintenance, Repair, Overhaul
Metal Processing & Fabrication
Related Technologies
Adhesives
Have questions? Can't find the right product?
Ask our Experts
Talk to an Expert
Can't find the right product?
When You're Ready
Get a Quote
Ask a Question
Request a Sample
Request a Document
Document Download
Thank you
Your document download will begin shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
Thank you
Thank you for your inquiry and interest in ChemPoint.
We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
Thank you
Thank you for your inquiry and interest in ChemPoint.
We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
Document Download
The document currently is provided in the following languages from the supplier at this time.
Document Download
The document currently is provided in the following languages from the supplier at this time.
Are you in the correct region?
We’ve detected that you are located in a different region than the region selected on the website. Would you like to change your region?
Current Region: English - Canada
