RBC-3200 is a modified, low-viscosity epoxy potting compound offering excellent wettability and air release. It is similar to #3100 in versatility, but by comparison offers longer pot life, greater impact resistance, and improved handling characteristics. #3200 Resin can be used for epoxy potting and encapsulating, epoxy casting, epoxy impregnation and other applications where a low viscosity epoxy system is desirable.
Mixed Viscosity @ 25oC, cps: 300
Shelf Life, (closed Container @ 25oC): 12 months
Specific Gravity @ 25oC: 1.12
Hardness, Shore D: 90
Linear Shrinkage, in./in.: 0.012
Moisture Absorption 10 Days @ 25oC, %: 0.19
Izod Impact Strength, ft. lbs./in. of notch: 0.65
Tensile Strength @ 25oC, psi: 9,900
Compressive Strength @ 25oC, psi: 18,600
Thermal Conductivity, cal/sec/cm2/oC/cm X 10-4: 5.10
Thermal Stability, 1000 Hrs. @ 175oC, % Wt. Loss: 0.55
Coefficient of Thermal Expansion, in./in./oC X 10-6: 52
Heat Distortion Temperature, oC: 125
Operating Temperature Range, oC: -55 to 130
Volume Resistivity @ 25oC, ohm-cm: 4×1015
Dielectric Strength, volts/mil: 465
Dielectric Constant @ 25oC, 100 KC: 4.3
Dissipation Factor @ 25oC, 100 KC: 0.03
(Note: The above properties are typical of a system cured with hardener #AB-312.)
A-110: A rigid, room temperature curing system with limited pot life and fast cure.
A-120: A resilient, low viscosity system with slightly longer pot life, that exhibits excellent resistance to thermal shock.
AB-312: Good resistance to heat, chemicals, thermal and mechanical shock, and good electrical properties at high humidity.
Weigh the desired amount of #3200 Resin into a clean container and combine with recommended hardener in one of the ratios shown below.
|Hardener||Parts by Weight
per 100 pts. Resin
100 grams @ 25oC
|Hardener||Cure @ 25oC||Cure @ 65oC||Cure @ 100oC||Cure @ 130oC|
|A-110||24 hours||2 Hours||—||—|
|A-120||24 hours||2 hours||—||—|
|AB-312||—||6 hours||3 hours||2 hours|