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Armstrong A-12 Epoxy Adhesive, at 3:2 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 3:2 Mix Ratio.pdf
Price	EMAIL US sales@lookpolymers.com

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	82	82
Tensile Strength, Ultimate	37.6 MPa	5450 psi	after optimum cure
Elongation at Break	2.4 %	2.4 %
Adhesive Bond Strength	34.5 MPa	5000 psi	Steel-Steel; after optimum cure
	20.3 MPa @Temperature -54.4 °C	2950 psi @Temperature -66.0 °F	Aluminum-Aluminum tensile shear
	23.4 MPa @Temperature 25.0 °C	3400 psi @Temperature 77.0 °F	Aluminum-Aluminum tensile shear
	23.4 MPa @Temperature 82.2 °C	3400 psi @Temperature 180 °F	Aluminum-Aluminum tensile shear

Thermal Properties	Metric	English	Comments
CTE, linear	35.0 µm/m-°C @Temperature 20.0 °C	19.4 µin/in-°F @Temperature 68.0 °F
Glass Transition Temp, Tg	83.0 °C	181 °F

Processing Properties	Metric	English	Comments
Processing Temperature	22.2 °C	72.0 °F
	93.3 °C	200 °F	Optimum cure is 20 min. @ 200°F
	149 °C	300 °F	Fast cure is 5 min. @ 300°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	3/2	By Weight

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