RBC-3710 is a filled, high viscosity version of RBC-3700 which exhibits greater tensile and compressive strength. It offers a long pot life at elevated temperatures which insures good wettability and impregnation. Like RBC-3700, it is primarily an epoxy potting compound but it is also an excellent impregnating and encapsulating epoxy system for transformers, coils, and other components requiring excellent physical shock resistance.
Mixed Viscosity @ 25oC, cps: 20,000
Shelf Life, (closed Container @ 25oC): 12 months
Color: Mocha
Specific Gravity @ 25oC: 1.52
Hardness, Shore D: 65
Linear Shrinkage, in./in.: 0.005
Moisture Absorption 10 Days @ 25oC, %: 0.30
Izod Impact Strength, ft. lbs./in. of notch: 1.24
Tensile Strength @ 25oC, psi: 7,800
Compressive Strength @ 25oC, psi: 14,200
Thermal Conductivity, cal/sec/cm2/oC/cm X 10-4: 12.8
Thermal Stability, 1000 Hrs. @ 175oC, % Wt. Loss: 0.30
Coefficient of Thermal Expansion, in./in./oC X 10-6: 38
Thermal Shock, Olyphant Washer Test (-55 to 150oC): 12 Cycles
Heat Distortion Temperature, oC: 40
Operating Temperature Range, oC: -65 to 155
Volume Resistivity @ 25oC, ohm-cm: 6×1016
Dielectric Strength, volts/mil: 475
Dielectric Constant @ 25oC, 100 KC: 4.10
Dissipation Factor @ 25oC, 100 KC: 0.018
Stir epoxy resin #3710 and epoxy hardener #3710 in their shipping containers prior to each use to insure uniformity. Use of power equipment is recommended. Weigh the desired amount of #3710 Epoxy Resin into a clean container and combine with recommended amount of #3710 Epoxy Hardener. Mix thoroughly. Entrapped air may be removed by vacuum.
| Mix Ratio by Weight | 2 parts resin to 3 parts hardener | |
| Pot Life | @ 25oC | 3 weeks |
| @ 65oC | 12 hours | |
| @ 100oC | 60 minutes |
| Cure Time | @ 60oC | 24 hours |
| @ 100oC | 3-4 hours | |
| @ 130oC | 2-3 hours |
