Songhan Plastic Technology Co.,Ltd.

Armstrong C-7/H20 Epoxy Adhesive

Category Polymer , Adhesive , Thermoset , Epoxy , Epoxy Adhesive, Flexible
Manufacturer Armstrong Epoxy Adhesives; Resin Technology Group
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Armstrong C-7/H20 Epoxy Adhesive.pdf
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Material Notes:
A clear, unfilled, medium viscosity adhesive recommended for use with any Armstrong Activator. Physical property data included covers C-7 used with Activators W and H-20. All other Activators may also be used to achieve specific characteristics in the completed bond- see appropriate Data Sheet for details. C-7 with Activator W offers maximum versatility in that differing degrees of flexibility can be achieved by varying the mixing ratios within the recommended limits. C-7 with Activator W meets the requirements of Navy Specs. XWS15351 and WS 09125C. C-7, when used with Activator H-20, offers a tough yet rigid bond.Information provided by Ellsworth Adhesives.
Physical Properties Metric English Comments
Viscosity 24000 cP
24000 cP
Mechanical Properties Metric English Comments
Hardness, Shore D 82
Tensile Strength, Ultimate 58.6 MPa
8500 psi
after optimum cure
Elongation at Break 3.7 %
3.7 %
Adhesive Bond Strength 26.2 MPa
3800 psi
Steel-Steel; after optimum cure
14.1 MPa

@Temperature 25.0 °C
2050 psi

@Temperature 77.0 °F
Aluminum-Aluminum tensile shear
14.5 MPa

@Temperature 82.2 °C
2100 psi

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

@Temperature -54.4 °C
2200 psi

@Temperature -66.0 °F
Aluminum-Aluminum tensile shear
Thermal Properties Metric English Comments
CTE, linear 40.0 µm/m-°C

@Temperature 20.0 °C
22.2 µin/in-°F

@Temperature 68.0 °F
Glass Transition Temp, Tg 98.0 °C
208 °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
149 °C
300 °F
Fast cure is 5 min. @ 300°F
Pot Life <= 45.0 min

@Temperature 25.0 °C
<= 45.0 min

@Temperature 77.0 °F
100 g
Descriptive Properties Value Comments
Color Amber
Mix Ratio 3/1
By Weight
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