Armstrong A-34 Epoxy Adhesive

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Armstrong A-34 Epoxy Adhesive
Categories:	Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive
Material Notes:	This white paste material is a fast-curing adhesive with a working life of 20-25 minutes in a 100-gram mass. Mixing ratio is a convenient 1:1. A-34 has excellent wetting properties and is suggested for bonds which will be subjected to high humidity or cryogenic temperatures. It is especially suited for bonding ABS to itself or to other substrates, plus a wide range of metals, other plastics, ceramics, or wood. A-34 meets the requirements of Mil. spec. MMM-A-187B. Information provided by Ellsworth Adhesives.
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Physical Properties	Metric	English	Comments

Viscosity	280000 cP	280000 cP	Mixed

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	84	84
Tensile Strength, Ultimate	31.4 MPa	4550 psi	after optimum cure
Elongation at Break	2.1 %	2.1 %
Adhesive Bond Strength	26.9 MPa	3900 psi	Steel-Steel; after optimum cure
	6.55 MPa @Temperature 82.2 °C	950 psi @Temperature 180 °F	Aluminum-Aluminum tensile shear
	10.0 MPa @Temperature -54.4 °C	1450 psi @Temperature -66.0 °F	Aluminum-Aluminum tensile shear
	25.9 MPa @Temperature 25.0 °C	3750 psi @Temperature 77.0 °F	Aluminum-Aluminum tensile shear

Thermal Properties	Metric	English	Comments
CTE, linear	80.0 µm/m-°C @Temperature 20.0 °C	44.4 µin/in-°F @Temperature 68.0 °F
Glass Transition Temp, Tg	61.0 °C	142 °F

Processing Properties	Metric	English	Comments
Processing Temperature	22.2 °C	72.0 °F
	93.3 °C	200 °F	Optimum cure is 30 min. @ 200°F
	149 °C	300 °F	Fast cure is 5 min. @ 300°F
Pot Life	<= 20.0 min @Temperature 25.0 °C	<= 20.0 min @Temperature 77.0 °F	100 g

Descriptive Properties
Color	White
Mix Ratio	1/1		By Weight

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PARM20 / 24552

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