HMC Electronics 66040-LOC Loctite 660 Retaining Compound, Quick Metal - Manual

Technical Data Sheet
LOCTITE
®
660™
December - 2009
PRODUCT DESCRIPTION
LOCTITE
®
660™ provides the following product
characteristics:
Technology Acrylic
Chemical Type Urethane methacrylate
Appearance (uncured) Metallic gray paste LMS
Fluorescence No
Components One component - requires no mixing
Viscosity High
Cure Anaerobic
Secondary Cure Activator
Application Retaining
Strength High
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
bearings, and damaged keyways.
NSF International
Registered to NSF Category P1 for use as a sealant where
there is no possibilty of food contact in and around food
processing areas. Note: This is a regional approval. Please
contact your local Technical Service Center for more
information and clarification.
TYPICAL PROPERTIES OF UNCURED MATERIAL
Specific Gravity @ 25 °C 1.13
Flash Point - See MSDS
Viscosity, Brookfield - HBT, 25 °C, mPa·s (cP):
Spindle TB, speed 0.5 rpm,
Helipath
1,000,000 to 2,000,000 LMS
Spindle TB, speed 5.0 rpm,
Helipath
150,000 to 350,000 LMS
TYPICAL CURING PERFORMANCE
Cure Speed vs. Substrate
The rate of cure will depend on the substrate used. The graph
below shows the shear strength developed with time on steel
pins and collars compared to different materials and tested
according to ISO 10123.
% of Full Strength on Steel
Cure Time
100
75
50
25
0
1min 5min10min 30min 1h 3h 6h 24h 72h
Steel
Aluminum
Zinc dichromate
Cure Speed vs. Bond Gap
The rate of cure will depend on the bondline gap. The following
graph shows shear strength developed with time on steel pins
and collars at different controlled gaps and tested according to
ISO 10123.
% of Full Strength on Steel
Cure Time
100
75
50
25
0
1min 5min10min 30min 1h 3h 6h 24h 72h
0.154 mm
0.27 mm
Cure Speed vs. Temperature
The rate of cure will depend on the temperature. The graph
below shows the shear strength developed with time at
different temperatures on steel pins and collars and tested
according to ISO 10123.
% of Full Strength on Steel
Cure Time
100
75
50
25
0
1min 5min10min 30min 1h 3h 6h 24h 72h
4 °C
40 °C
22 °C
Documentation Provided By HMC Electronics
33 Springdale Ave. Canton, MA 02021
http://www.hmcelectronics.com
(800) 482-4440