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Armstrong A-40 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
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Material Notes:
Is a high viscosity, dark gray, liquid adhesive system that is qualified under Mil. Spec. MMM-A-134, Type II. NOTE: Adhesives qualified under this Specification (A-40, A-706) feature exceptional resistance to -67°F; salt spray: anti-icing fluid; outdoor weathering jet fuels; hydrocarbon fluids; hydraulic oil; creep, etc. A-40 has a working life of 60-150 minutes at room temperature.Information provided by Ellsworth Adhesives.
Physical Properties Metric English Comments
Viscosity 19000 cP
19000 cP
Mixed
Mechanical Properties Metric English Comments
Hardness, Shore D 77
77
Tensile Strength, Ultimate 41.7 MPa
6050 psi
after optimum cure
Elongation at Break 2.1 %
2.1 %
Adhesive Bond Strength 49.0 MPa
7100 psi
Steel-Steel; after optimum cure
15.9 MPa

@Temperature -54.4 °C
2300 psi

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

@Temperature 82.2 °C
2900 psi

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

@Temperature 25.0 °C
4000 psi

@Temperature 77.0 °F
Aluminum-Aluminum tensile shear
Thermal Properties Metric English Comments
CTE, linear 46.0 µm/m-°C

@Temperature 20.0 °C
25.6 µin/in-°F

@Temperature 68.0 °F
Minimum Service Temperature, Air -55.0 °C
-67.0 °F
Glass Transition Temp, Tg 118 °C
244 °F
Processing Properties Metric English Comments
Processing Temperature 22.2 °C
72.0 °F
98.9 °C
210 °F
Optimum cure is 2 hr. @ 210°F
149 °C
300 °F
Fast cure is 5 min. @ 300°F
Pot Life <= 150 min

@Temperature 25.0 °C
<= 150 min

@Temperature 77.0 °F
100 g
Descriptive Properties Value Comments
Color Grey
Mix Ratio 5/2
By Weight
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