RBC #5200 is a low viscosity, solventless coating which can be applied by brushing, dipping, or by spraying. The cured film is a transparent coating offering good chemical and moisture resistance as well as good adhesion to most substrates. RBC #5200 can be combined with several different hardeners for room temperature or elevated temperature cures to obtain specific properties. It can be used for coating printed circuit boards, transformers, heat sink components, or as a general purpose coating for any plastic, metal, or ceramic part.
Mixed Viscosity @ 25oC,cps: 500
Shelf Life, (closed Container @ 25oC): 12 Months
Specific Gravity @ 25oC: 1.08
Hardness, Shore D: 78
Linear Shrinkage, in./in.: 0.006
Moisture Absorption 10 Days @ 25oC, %: 0.30
Izod Impact Strength, ft. lbs./in. of notch: 0.90
Tensile Strength @ 25oC, psi: 12,800
Compressive Strength @ 25oC, psi: 18,000
Thermal Conductivity, cal/sec/cm2/oC/cm X 10-4: 5.30
Thermal Stability, 1000 Hrs. @ 175oC, % Wt. Loss: 0.55
Coefficient of Thermal Expansion, in./in./oC X 10-6: 53
Heat Distortion Temperature, oC: 100
Operating Temperature Range, oC: -65 to 100
Volume Resistivity @ 25oC, ohm-cm: 4×1016
Dielectric Strength, volts/mil: 475
Dielectric Constant @ 25oC, 100 KC: 4.2
Dissipation Factor @ 25oC, 100 KC: 0.035
The above properties are typical of a system cured with Hardener #AB-410.
A-110: A rigid, room temperature curing system with limited pot life and fast cure.
AB-410: A resilient, low viscosity system with longer pot life, that exhibits excellent resistance to thermal shock, and very high impact strength.
AB-312: Good resistance to heat, chemicals, thermal and mechanical shock, and good electrical properties at high humidity.
Weigh the desired amount of #5200 Resin into a clean container and combine with recommended hardener in the proper ratio as shown below.
|Hardener||Parts by Weight per 100 pts. Resin||Pot Life 100 grams @ 25oC|
|Hardener||Cure @ 25oC||Cure @ 65oC||Cure @ 100oC||Cure @ 130oC|
|A-110||24 hours||2 hours||—||—|
|A-410||24 hours||2 hours||—||—|
|AB-312||—||5 hours||3 hours||2 hours|