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Tra-Con Tra-Cast 3109 Low Cost Epoxy Casting System

Category Polymer , Adhesive , Thermoset , Epoxy
Manufacturer Tra-Con, Inc.
Trade Name Tra-Cast
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Tra-Con Tra-Cast 3109 Low Cost Epoxy Casting System.pdf
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Material Notes:
TRA-CAST 3109 is a versatile epoxy casting system developed for solvent-free production casting, potting, encapsulating, and coating applications where low cost, easy handling and flowability, and excellent mechanical and electrical properties are required. Color coded for easy mixing and pouring, this formulation cures to a tough, rigid, low-shrinkage solid in a matter of hours at room temperature and is dimensionally stable over a wide temperature range. TRA-CAST 3109, with its good exotherm, pot life and pouring characteristics, is especially suited for large mass (up to 1 gallon) castings, as well as for other industrial and electronic large-pour applications. It develops excellent adhesion to rigid plastics and laminates, metals, and ceramics, has a low coefficient of thermal expansion, and is readily machined and shaped with ordinary shop tools. The fully cured epoxy system is an excellent electrical insulator and is compatible with electrical components, has good resistance to water, weather, gases and vapors, and from chemical compounds including mild acids and alkalis, many corrosive salts and salt solutions, jet fuels, petroleum product and lubricants, and other organic and inorganic materials. Information provided by Tra-Con Inc.
Physical Properties Metric English Comments
Specific Gravity 1.57 g/cc
1.57 g/cc
Mixed
Viscosity 93000 cP

@Temperature 25.0 °C
93000 cP

@Temperature 77.0 °F
After mixing
Mechanical Properties Metric English Comments
Hardness, Shore D 79
79
Compressive Strength 87.6 MPa
12700 psi
Thermal Properties Metric English Comments
CTE, linear 48.0 µm/m-°C

@Temperature 20.0 °C
26.7 µin/in-°F

@Temperature 68.0 °F
Maximum Service Temperature, Air 140 °C
284 °F
Minimum Service Temperature, Air -60.0 °C
-76.0 °F
Electrical Properties Metric English Comments
Volume Resistivity 7.50e+14 ohm-cm
7.50e+14 ohm-cm
Dielectric Constant 4.77

@Frequency 1000 Hz
4.77

@Frequency 1000 Hz
Dielectric Strength 14.6 kV/mm
370 kV/in
Dissipation Factor 0.0030

@Frequency 1000 Hz
0.0030

@Frequency 1000 Hz
Processing Properties Metric English Comments
Cure Time 360 min
6.00 hour
4 hrs @ 25°C + 2 hrs @ 65°C
1440 min

@Temperature 25.0 °C
24.0 hour

@Temperature 77.0 °F
Pot Life 60 min
60 min
Descriptive Properties Value Comments
Color Black
Mix Ratio, parts by weight 100/26
Resin/Hardener
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