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Metal adhesives

Resinlab® EP1385 Black Epoxy Formulation
Categories: Polymer; Thermoset; Epoxy; Epoxy Encapsulant, Unreinforced

Material Notes: Resinlab™ EP1385 Black is an epoxy formulation designed for applications requiring resistance to E-85 type fuels. It has good wetting and adhesion to most surfaces. It has very good resistance to water, acids and bases and most organic solvents. The EP1385 Black is a two part unfilled electronic grade epoxy encapsulating material designed for small to medium sized castings. It has a pot life of about one hour, cures quickly to a tack free handle strength at room temperature within 3 to 4 hours, and reaches a tough, semi-rigid state within 48 hours. Cure can be accelerated by the addition of heat. Times and temperatures from ½ hour at 100°C to 1 hour at 80°C or 4 hours at 50°C fill bring the product to full cure.

Information Provided by Resinlab L.L.C., an Ellsworth Adhesives Company.

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.09 g/cc1.09 g/ccPart B; TM R050-16
 1.14 g/cc1.14 g/ccMixed; TM R050-16
 1.16 g/cc1.16 g/ccPart A; TM R050-16
Water Absorption 0.35 %
@Time 86400 sec
0.35 %
@Time 24.0 hour
TM R050-35
Viscosity 1000 cP1000 cPPart B, RVT, #2, 2.5 rpm; TM R050-12
 5000 cP5000 cPMixed; TM R050-12
 14000 cP14000 cPPart A, RVT, #5, 2.5 rpm; TM R050-12
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 7575TM R050-17
Tensile Strength at Break 55.2 MPa8000 psiTM R050-36
Tensile Strength, Ultimate 56.5 MPa8200 psiTM R050-36
Tensile Strength, Yield 31.0 MPa4500 psiTM R050-36
Elongation at Break 3.0 %3.0 %TM R050-36
Tensile Modulus 3.10 GPa450 ksiTM R050-36
Compressive Yield Strength 68.9 MPa10000 psiTM R050-38
Compressive Strength 138 MPa20000 psiUltimate; TM R050-38
 138 MPa20000 psiBreak; TM R050-38
Compressive Modulus 2.76 GPa400 ksiTM R050-38
Adhesive Bond Strength 3.10 MPa450 psiLap shear; 2024 T3 Al Abraded / MEK Wipe; TM R050-37
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 8.00e+14 ohm-cm8.00e+14 ohm-cm
Dielectric Constant 4.5
@Frequency 100 Hz,
Temperature 25.0 °C
4.5
@Frequency 100 Hz,
Temperature 77.0 °F
Dielectric Strength 17.3 kV/mm440 kV/in
 
Thermal PropertiesMetricEnglishComments
CTE, linear 60.0 µm/m-°C33.3 µin/in-°F
Thermal Conductivity 0.140 W/m-K0.972 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 150 °C302 °F
Minimum Service Temperature, Air -40.0 °C-40.0 °F
Glass Transition Temp, Tg 92.0 °C198 °FTM R050-25
 
Processing PropertiesMetricEnglishComments
Pot Life 45 min45 minMass: 100g; TM R050-19
 
Descriptive Properties
ColorBlack
E-85 Fuel Resistance (%)-2Hardness change, 1 year
 4.6Weight gain, 1 year
Mix Ratio100:47Weight
 2:1Volume

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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PRESL145 / 101559

Metal adhesives

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