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Armstrong A-12 Epoxy Adhesive, at 2:3 Mix Ratio

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-12 Epoxy Adhesive, at 2:3 Mix Ratio.pdf
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Material Notes:
Our most popular general-purpose, high viscosity adhesive for industry. Combines low toxicity with excellent physical properties, and offers a non-critical mixing ratio of 1:1 by weight. This ratio can be altered to achieve improved bond properties at elevated or cryogenic temperatures. Adhesive and curing agent are easily mixed and are of different colors for visual assurance of thorough mixing. A-12 meets the requirements of Mil Spec. MIL-A-47074 (MI) Type 1, Class 2.Information provided by Ellsworth Adhesives.
Physical Properties Metric English Comments
Viscosity 80000 cP
80000 cP
Mixed
Mechanical Properties Metric English Comments
Hardness, Shore D 77
77
Tensile Strength, Ultimate 24.1 MPa
3500 psi
after optimum cure
Elongation at Break 11.2 %
11.2 %
Adhesive Bond Strength 27.9 MPa
4050 psi
Steel-Steel; after optimum cure
5.52 MPa

@Temperature 82.2 °C
800 psi

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

@Temperature -54.4 °C
3050 psi

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

@Temperature 25.0 °C
3900 psi

@Temperature 77.0 °F
Aluminum-Aluminum tensile shear
Thermal Properties Metric English Comments
CTE, linear 28.0 µm/m-°C

@Temperature 20.0 °C
15.6 µin/in-°F

@Temperature 68.0 °F
Glass Transition Temp, Tg 63.0 °C
145 °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
73.9 °C
165 °F
Fast cure is 20 min @ 165°F
Pot Life <= 90.0 min

@Temperature 25.0 °C
<= 90.0 min

@Temperature 77.0 °F
100 g
Descriptive Properties Value Comments
Color Brown
Mix Ratio 2/3
By Weight
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