M-Bond GA-2 Adhesive
Description
Two-component, partially filled, 100%-solids epoxy
system for general-purpose stress analysis. Higher
viscosity than
AE-10
or
AE-15
systems. Elevated-temperature cure recommended for
best performance and resistance to chemical attack.
Often used to fill irregular surfaces. Uneven
gluelines easily detectable by nonuniformity of bond
color.
M-Bond GA-2 Kit
Cure
Requirements
Preferred Room-Temperature Cure
: 40 hours at +75°F (+24°C)
Recommended Postcure
: 2 hours at 25°F (15°C) above the maximum
operating temperature.
Operating Temperature
Range
Long Term: -320° to +200°F (-195°to
+95°C)
Elongation
Capabilities
4% at -320°F (-195°C)
10% to 15% at +75°F (+24°C) after 40-hour
room-temperature cure or 6-hour room-temperature cure
with postcure
15% to 20% at +200°F (+95°C)
Shelf Life
*
12 mo at +75°F (+24°C)
18 mo at +20°F (-7°C)
Pot Life
15 minutes at +75°F (+24°C)
Can be extended by cooling jar or by spreading
adhesive on clean aluminum plate.
Clamping
Pressure
5 to 20 psi (35 to 140 kN/m
2
)
The black filler provides a visual indication of
nonuniform bond areas caused by uneven clamping
pressure.
Instruction
Manual
B-137
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