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Armstrong A-2/W Epoxy Adhesive

Category Polymer , Adhesive , Thermoset , Epoxy , Epoxy Adhesive
Manufacturer Armstrong Epoxy Adhesives; Resin Technology Group
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Armstrong A-2/W Epoxy Adhesive.pdf
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Material Notes:
This off-white paste epoxy is a versatile adhesive systems. The choice of one of four recommended Activators (A, E, W or H-20) makes A-2 Adhesive an ideal choice for many applications. A-2 with Activators W or H-20 has a very low thermal expansion coefficient, especially important for bonding ceramics, porcelain, etc. A-2 with Activator A is qualified under Mil. Spec. MIL-A-47284 (MI).Information provided by Ellsworth Adhesives.
Physical Properties Metric English Comments
Viscosity 130000 cP
130000 cP
Mixed
Mechanical Properties Metric English Comments
Hardness, Shore D 80
80
Tensile Strength, Ultimate 42.7 MPa
6200 psi
after optimum cure
Elongation at Break 3.1 %
3.1 %
Adhesive Bond Strength 39.0 MPa
5650 psi
Steel-Steel; after optimum cure
8.27 MPa

@Temperature 82.2 °C
1200 psi

@Temperature 180 °F
Aluminum-Aluminum tensile shear
20.0 MPa

@Temperature -54.4 °C
2900 psi

@Temperature -66.0 °F
Aluminum-Aluminum tensile shear
37.6 MPa

@Temperature 25.0 °C
5450 psi

@Temperature 77.0 °F
Aluminum-Aluminum tensile shear
Thermal Properties Metric English Comments
CTE, linear 86.0 µm/m-°C

@Temperature 20.0 °C
47.8 µin/in-°F

@Temperature 68.0 °F
Glass Transition Temp, Tg 60.0 °C
140 °F
Processing Properties Metric English Comments
Processing Temperature 22.2 °C
72.0 °F
93.3 °C
200 °F
Optimum cure is 30 min. @ 200°F
149 °C
300 °F
Fast cure is 5 min. @ 300°F
Pot Life <= 60.0 min

@Temperature 25.0 °C
<= 60.0 min

@Temperature 77.0 °F
100 g
Descriptive Properties Value Comments
Color White
Mix Ratio 3/1
By Weight
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