Datasheet

Technical Data Sheet
Research, Development & Engineering Product 222
Tallaght Business Park,
Dublin, Ireland Worldwide Version, October 1998
NOT FOR PRODUCT SPECIFICATIONS.
THE TECHNICAL DATA CONTAINED HEREIN ARE INTENDED AS REFERENCE ONLY.
PLEASE CONTACT LOCTITE CORPORATION QUALITY DEPARTMENT FOR ASSISTANCE AND RECOMMENDATIONS ON SPECIFICATIONS FOR THIS PRODUCT.
ROCKY HILL, CT FAX: [phone] DUBLIN, IRELAND FAX: [phone] - 9959
PRODUCT DESCRIPTION
LOCTITE
®
Product 222 is a single component anaerobic
threadlocking material, which is thixotropic and develops low
strength for easy disassembly. The product cures when
confined in the absence of air between close fitting metal
surfaces.
TYPICAL APPLICATIONS
Prevents loosening through vibration and leakage of threaded
fasteners. Particularly suitable for applications such as
adjustment of set screws, small diameter or long engagement
length fasteners where easy disassembly is required without
shearing the screw.
PROPERTIES OF UNCURED MATERIAL
Typical
Value Range
Chemical Type Dimethacrylate ester
Appearance Opaque Purple,
Fluorescent Liquid
Specific Gravity @ 25
_
C 1.05
Viscosity @ 25
_
C, mPa.s (cP)
Brookfield RVF
Spindle 3 @ 2 rpm 5,000 2,500 to 7,500
@ 20 rpm 1200 800 to 1,600
DIN 54453, MV
D = 277 s
-
1
after t=180secs 135 90 to 180
Flash Point (TCC),
_
C >93
TYPICAL CURING PERFORMANCE
Cure speed vs. substrate
The rate of cure will depend on substrate used. The graph
below shows the breakaway strength developed with time on
M10 steel nuts and bolts compared to different materials and
tested according to ISO 10964.
5min 10min 30min 1hr 3hr 6hr 24hr
72hr
Cure Time Hours
0
25
50
75
100
% of Full Strength on Steel
Stainless Steel
Steel
Brass
Zinc D
ichrom
ate
Cure speed vs. bond gap
The rate of cure will depend on the bondline gap. Gaps in
threaded fasteners depend on thread type, quality and size.
The following graph shows shear strength developed with time
on steel pins and collars at different controlled gaps and tested
according to ISO 10123.
5min 10min 30min 1hr 3hr 6hr 24hr
72hr
Cure Time
,
Hours
0
25
50
75
100
% of Full Strength on Steel
0.15mm
0.05mm
0.25mm
Cure speed vs. temperature
The rate of cure will depend on the ambient temperature.
Graph below shows the breakaway strength developed with
time at different temperatures on M10 steel nuts and bolts
and tested according to ISO 10964.
5min 10min 30min1hr 3hr 6hr 24hr 72hr
Cure Time, Hours
0
25
50
75
100
% of Full Strength on Steel
22
°C
40
°C
5°C
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 breakaway strength developed
with time using ACTIVATOR N and T on M10 Zinc Dichromate
steel nuts & bolts and tested according to ISO 10964.
5min 10min 30min 1hr 3hr 6hr 24hr 72hr
Cure Time, Hours
0
25
50
75
100
% of Full Strength on Steel
Act T
N
o
Activator
Act N
TYPICAL PROPERTIES OF CURED MATERIAL
Physical Properties
Coefficient of thermal expansion, ASTM D696, K
-1
80 x10
-
6
Coefficient of thermal conductivity, ASTM C177, W.m
-1
K
-1
0.1
Specific Heat , kJ.kg
-1
K
-1
0.3