LOCTITE® 660 is designed for the bonding of cylindrical fitting parts, particularly where bond gaps can approach 0.50 mm (0.02 in.). The product cures when confined in the absence of air between close fitting metal surfaces and prevents loosening and leakage from shock and vibration. This product possesses excellent gap cure characteristics. Typical applications include restoring correct fits on worn shafts, spun beraings, and damaged keyways.
FEATURES AND BENEFITS
Used for repairing worn coaxial parts without re-machining.
Prevents loosening: It fills all gaps between the cylindrical components and cures into a hard thermoset plastic. This unitizes the assembly and prevents loosening and leakage from shock and vibration.
APPLICATION
Retaining
Typical Properties
PRODUCT CHARACTERISTICS
Technology
Acrylic
Chemical Type
Urethane methacrylate
Appearance (uncured)
Metallic Grey PasteLMS
Fluorescence
No
Components
One component – requires no mixing
Viscosity
High
Cure
Anaerobic
Secondary Cure
Activator
Application
Retaining
Strength
High
TYPICAL PROPERTIES OF UNCURED MATERIAL
Specific Gravity @ 25 °C
1.13
Flash Point – See SDS
Viscosity, Brookfield – HBT, 25 °C, mPa·s (cP)
Spindle TB, speed 0.50 rpm, Helipath 1,000,000 to 2,000,000LMS
Spindle TB, speed 5.00 rpm, Helipath 150,000 to 350,000LMS
Viscosity, Cone & Plate, 25 °C, mPa·s (cP)
Shear rate 129 s -1
400 to 600
TYPICAL PROPERTIES OF CURED MATERIAL
Physical Properties:
Coefficient of Thermal Expansion, ASTM D 696,K^-1
80×10^-6
Coefficient of Thermal Conductivity, ASTM C 177, W/(m·K)
