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Armstrong A-2/A Epoxy Adhesive

Category Polymer , Adhesive , Thermoset , Epoxy , Epoxy Adhesive
Manufacturer Armstrong Epoxy Adhesives; Resin Technology Group
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Armstrong A-2/A 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 210000 cP
210000 cP
Mixed
Mechanical Properties Metric English Comments
Hardness, Shore D 87
87
Tensile Strength, Ultimate 30.7 MPa
4450 psi
after optimum cure
Elongation at Break 2.0 %
2.0 %
Adhesive Bond Strength 53.8 MPa
7800 psi
Steel-Steel; after optimum cure
14.1 MPa

@Temperature -54.4 °C
2050 psi

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

@Temperature 82.2 °C
2100 psi

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

@Temperature 25.0 °C
2200 psi

@Temperature 77.0 °F
Aluminum-Aluminum tensile shear
Thermal Properties Metric English Comments
CTE, linear 55.0 µm/m-°C

@Temperature 20.0 °C
30.6 µin/in-°F

@Temperature 68.0 °F
Glass Transition Temp, Tg 114 °C
237 °F
Processing Properties Metric English Comments
Processing Temperature 22.2 °C
72.0 °F
73.9 °C
165 °F
Optimum cure is 2 hr. @ 165°F
93.3 °C
200 °F
Fast cure is 10 min. @ 200°F
Pot Life <= 30.0 min

@Temperature 25.0 °C
<= 30.0 min

@Temperature 77.0 °F
100 g
Descriptive Properties Value Comments
Color White
Mix Ratio 100/4
By Weight
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