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Rulon Bearings

Tra-Con Tra-Cast 3101 Encapsulating Adhesive System
Categories: Polymer; Thermoset; Epoxy

Material Notes: TRA-CAST 3101 is an easy-to-use, room temperature cure, rigid, low viscosity, 100% solids (no solvents) epoxy resin and hardener system with excellent mechanical and electrical properties. It is recommended for structural and electronic casting and encapsulating applications that require its excellent wetting and fluidity, good thermal expansion coefficients, and improved thermal shock resistance properties. TRA-CAST 3101 is readily mixed, handled and cured at room temperature, and it adheres to a wide range of materials including most metals, glass, ceramics and many plastics. Fully cured TRA-CAST 3101 is a strong, tough, durable electrical insulator which is also highly resistant to weather, water, gases and vapors, petroleum lubricants and fuels and many mild acids and alkalis.

Information provided by Tra-Con Inc.

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.50 g/cc1.50 g/ccMixed
Viscosity 3000 cP
@Temperature 25.0 °C
3000 cP
@Temperature 77.0 °F
After mixing
 
Mechanical PropertiesMetricEnglishComments
Hardness, Shore D 9090
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.40e+14 ohm-cm1.40e+14 ohm-cm
 8.50e+10 ohm-cm
@Temperature 100 °C
8.50e+10 ohm-cm
@Temperature 212 °F
Dielectric Constant  3.9
@Frequency 1e+6 Hz
3.9
@Frequency 1e+6 Hz
 4.2
@Frequency 1000 Hz
4.2
@Frequency 1000 Hz
Dielectric Strength 16.7 kV/mm425 kV/in
Dissipation Factor  0.020
@Frequency 1000 Hz
0.020
@Frequency 1000 Hz
 0.020
@Frequency 1e+6 Hz
0.020
@Frequency 1e+6 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear 30.0 µm/m-°C
@Temperature 20.0 °C
16.7 µin/in-°F
@Temperature 68.0 °F
Maximum Service Temperature, Air 125 °C257 °F
Minimum Service Temperature, Air -70.0 °C-94.0 °F
 
Processing PropertiesMetricEnglishComments
Cure Time 360 min6.00 hour4 hrs @ 25°C + 2 hrs @ 65°C
 1440 min
@Temperature 25.0 °C
24.0 hour
@Temperature 77.0 °F
Pot Life 30 min30 min
 
Descriptive Properties
Color Tan
Heat Distortion Temperature °C85
Mix Ratio, parts by weight100/125Resin/Hardener

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.

PTRAC100 / 71028

Aluminum Castings

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