PRODUCT DESCRIPTION
LOCTITE
characteristics:
LOCTITE
threaded fasteners which require normal disassembly with
standard hand tools. The product cures when confined in the
absence of air between close fitting metal surfaces and
prevents loosening and leakage from shock and vibration.
Particularly suitable for heavy duty applications such as bolts
used in transmissions, construction equipment or railroad
assemblies where resistance to heavy shock, vibration and
stress level is required along with exposure to elevated
temperatures. The thixotropic nature of LOCTITE
reduces the migration of liquid product after application to the
substrate.
TYPICAL PROPERTIES OF UNCURED MATERIAL
TYPICAL CURING PERFORMANCE
Cure Speed vs. Substrate
The rate of cure will depend on the substrate used. The graph
below shows the breakaway strength developed with time on
M10 black oxide steel bolts and mild steel nuts compared to
different materials and tested according to ISO 10964.
Technology
Chemical Type
Appearance (uncured)
Fluorescence
Components
Viscosity
Cure
Secondary Cure
Application
Strength
Specific Gravity @ 25 °C
Flash Point - See MSDS
Viscosity, Brookfield - RVF, 25 °C, mPa·s (cP):
Spindle 3, speed 20 rpm
150
125
100
75
50
25
1min
0
®
®
Reoiled Zn phos
246™ is designed for the locking and sealing of
Black oxide
246™
5min 10min 30min 1h
provides
Acrylic
Dimethacrylate ester
Blue opaque liquid
Positive under UV light
One component - requires no mixing
Medium, thixotropic
Anaerobic
Activator
Threadlocking
Medium
the
3h 6h
following
LMS
Zinc dichromate
2,000 to 4,000
LMS
24h
1.15
®
product
246™
LMS
72h
Cure Speed vs. Temperature
The rate of cure will depend on the temperature. The graph
below shows the breakaway strength developed with time at
different temperatures on M10 black oxide steel bolts and mild
steel nuts and tested according to ISO 10964.
Cure Speed vs. Activator
Where cure speed is unacceptably long, or large gaps are
present, applying activator to the surface will improve cure
speed. The graph below shows the breakaway strength
developed with time on M10 zinc dichromate steel nuts and
bolts using Activator 7471™ and 7649™ and tested according
to ISO 10964.
TYPICAL PERFORMANCE OF CURED MATERIAL
After 24 hours @ 22 °C
Breakaway Torque, ISO 10964:
Breakloose Torque, ISO 10964, Pre-torqued to 5 N·m:
Max. Prevail Torque, ISO 10964, Pre-torqued to 5 N·m:
3/8 x 16 steel nuts (grade
2) and bolts (grade 5)
3/8 x 16 zinc nuts and bolts
M10 black
nuts and bolts
M10 black
nuts and bolts
100
100
75
50
25
75
50
25
0
1min
0
1min
LOCTITE
5min 10min 30min 1h
5min 10min 30min 1h
oxide
oxide
steel
steel
N·m
(lb.in.)
N·m
(lb.in.)
N·m
(lb.in.)
N·m
(lb.in.)
Technical Data Sheet
3h 6h
3h 6h
®
(100 to 200)
(50 to 200)
(130 to 210)
(35 to 80)
11.3 to 22.6
5.7 to 22.6
15 to 24
4 to 9
246™
January-2011
24h
24h
LMS
LMS
72h
72h
