Data Sheet
Technical Data Sheet
LOCTITE
®
319™
July-2005
PRODUCT DESCRIPTION
LOCTITE
®
319™ provides the following product
characteristics:
Technology Acrylic
Chemical Type Modified acrylic ester
Appearance (uncured) Clear light amber liquid
LMS
Components One component - requires no mixing
Viscosity Medium
Cure Anaerobic with activator
Cure Benefit Room temperature cure
Application Bonding
LOCTITE
®
319™ typical applications include
bonding materials such as metals, glass, ceramics or plastics.
The product cures when confined between close fitting parts
with the aid of Activator 7649™.
TYPICAL PROPERTIES OF UNCURED MATERIAL
Specific Gravity @ 25 °C 1.1
Flash Point - See MSDS
Viscosity, Brookfield - RVT, 25 °C, mPa·s (cP):
Spindle 3, speed 20 rpm 1,500 to 4,000
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 grit
blasted steel lap shears and tested according to ISO 4587.
(Activator 7649™ applied to one surface)
% of Full Strength on Steel
Cure Time
100
75
50
25
0
1min 5min10min 30min 1h 3h 6h 24h 72h
Steel with Activator 7649™
Cure Speed vs. Bond Gap
The rate of cure will depend on the bondline gap. The following
graph shows the shear strength developed with time on grit
blasted steel lap shears at different controlled gaps and tested
according to ISO 4587. (Activator 7649™ applied to one
surface)
% of Full Strength on Steel
Cure Time
100
75
50
25
0
1min 5min10min 30min 1h 3h 6h 24h 72h
0.2 mm
0.5 mm
0.05 mm
TYPICAL PROPERTIES OF CURED MATERIAL
Physical Properties:
Coefficient of Thermal Expansion, ASTM D 696, K
-1
100×10
-6
Coefficient of Thermal Conductivity, ASTM C177,
W/(m·K)
0.1
Specific Heat, kJ/(kg·K) 0.3
TYPICAL PERFORMANCE OF CURED MATERIAL
After 1 hour @ 22 °C, Activator 7649™ on 2 sides
Lap Shear Strength, ISO 4587:
Steel (grit blasted) N/mm² ≥10.3
LMS
(psi) (≥1,493)
After 24 hours @ 22 °C, Activator 736™ on 2 sides
Lap Shear Strength, ISO 4587:
Steel (grit blasted):
0.25 mm gap N/mm² ≥4.5
LMS
(psi) (≥652)
TYPICAL ENVIRONMENTAL RESISTANCE
Cured for 1 week @ 22 °C, Activator 7649™ on 1 side
Lap Shear Strength, ISO 4587:
Steel (grit blasted)
Hot Strength
Tested at temperature
% Strength @ 22 °C
Temperature, °C
100
75
50
25
0
0 50 100 150