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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
Download PDF	Armstrong A-40 Epoxy Adhesive.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

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
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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