RBC-3800 epoxy system is an unfilled, low viscosity, semi-flexible epoxy system used for epoxy potting and encapsulating and/or insulating a variety of electronic components. RBC-3800 exhibits excellent impact and thermal shock resistance and its electrical and physical properties are stable at 130oC continuous operation. The #3800 system is also available in a pigmented version to help insure a proper mix. | HANDLING PROPERTIES: | Mixed Viscosity @ 25oC, cps
Shelf Life, (closed Container @ 25oC) | 3,500
12 months | | PHYSICAL PROPERTIES (CURED): | Color
Specific Gravity @ 25oC
Hardness, Shore D
Linear Shrinkage, in./in.
Moisture Absorption 10 Days @ 25oC, %
Izod Impact Strength, ft. lbs./in. of notch
Tensile Strength @ 25oC, psi
Compressive Strength @ 25oC, psi | Translucent
1.10
55
0.008
0.81
1.40
2,100
3,000 | | THERMAL PROPERTIES (CURED): | Thermal Conductivity, cal/sec/cm2/oC/cm X 10-4
Thermal Stability, 1000 Hrs. @ 175oC, % Wt. Loss
Coefficient of Thermal Expansion, in./in./oC X 10-6
Heat Distortion Temperature, oC
Operating Temperature Range, oC | 5.5
3.20
85
35
-65 to 130 | | ELECTRICAL PROPERTIES (CURED): | Volume Resistivity @ 25oC, ohm-cm
Dielectric Strength, volts/mil
Dielectric Constant @ 25oC, 100 KC
Dissipation Factor @ 25oC, 100 KC | 8x1015
400
4.80
0.0016 |
MIXING INSTRUCTIONS:
Weigh the desired amount of #3800 Epoxy Resin into a clean container and combine with recommended amount of #3800 Epoxy Hardener. Mix thoroughly. Entrapped air may be removed by vacuum.
RECOMMENDED CURE SCHEDULE:
| | | | | Mix Ratio by weight: | 100 parts resin to 200 parts hardener | | Pot Life | @ 25oC | 1 WEEK | | | @ 65oC | 12 HRS. | | | @ 100oC | 30 MINS. | |
| | Cure Time | @ 75oC | 15-20 HRS. | | | @ 95oC | 6-8 HRS. | | | @ 120oC | 2-3 HRS. |
ASSOCIATED PUBLICATIONS:
RBC-3800 Epoxy Resin Material Safety Data Sheet (MSDS) RBC-3800 Epoxy Hardener Material Safety Data Sheet (MSDS) |
