Decorative Electronics Industrial Hallemite Flooring and Construction

RBC-4300 Technical Data Sheet

Type:  Electronics  
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EPOXY RESIN RBC #4300
 
 
 
RBC #4300 is a lower viscosity version of RBC #4100. It offers the same thermal conductive properties, excellent electrical insulation, high heat dissipation and low shrinkage as #4100. Being lower in viscosity it offers better wetting properties and intricate components. RBC #4300 can be cured at room temperature or elevated temperatures to fit a variety of applications. It can be used as heat sink for large castings or as an encapsulant for heat generating components.
 
HANDLING PROPERTIES:
Mixed Viscosity @ 25oC,cps                                                                               1,700
Shelf Life, (closed Container @ 25oC)                                                                 12 Months
PHYSICAL PROPERTIES (CURED):
Color                                                                                                                 Black
Specific Gravity @ 25oC                                                                                     1.80
Hardness, Shore D                                                                                             90
Linear Shrinkage, in./in.                                                                                      0.003
Moisture Absorption 10 Days @ 25oC, %                                                             0.55
Izod Impact Strength, ft. lbs./in. of notch                                                              0.30
Tensile Strength @ 25oC, psi                                                                              7,100
Compressive Strength @ 25oC, psi                                                                     25,000
THERMAL PROPERTIES (CURED):
Thermal Conductivity, cal/sec/cm2/oC/cm X 10-4                                                   29.7
Thermal Stability, 1000 Hrs. @ 175oC, % Wt. Loss                                               0.40
Coefficient of Thermal Expansion, in./in./oC X 10-6                                                27
Heat Distortion Temperature, oC                                                                          60
Operating Temperature Range, oC                                                                       -55 to 130
ELECTRICAL PROPERTIES (CURED):
Volume Resistivity @ 25oC, ohm-cm                                                                   4x1016
Dielectric Strength, volts/mil                                                                                480
Dielectric Constant @ 25oC, 100 KC                                                                    5.8
Dissipation Factor @ 25oC, 100 KC                                                                     0.018
 
The above properties are typical of a system cured with Hardener AB-56.
 
RECOMMENDED HARDENERS:
AB-56        A rigid, room temperature curing system with limited pot life and fast cure.
A-121        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.                         
 
 
 
 
 
 
 
MIXING INSTRUCTIONS: Weigh the desired amount of #4300 Resin into a clean container and combine with recommended hardener in the proper ratio as shown below.
 
  Hardener Parts by wt.                     Pot Life
    per 100 pts. resin                    100 grms. @ 25oC.
AB-56            16.0                               1 Hour
A-121             10.0                              3 Hours
AB-312          11.0                               5 Hours
                                               
                                             
RECOMMENDED CURE SCHEDULE:
           
HARDENER       CURE@25OC     CURE@65OC            CURE@100OC        CURE@130OC
AB-56                  24 Hrs.              1 Hrs.                         ---                           ---
A-121                   24 Hrs.              2 Hrs.                         ---                           ---
AB-312                  ---                   6 Hrs.                      5 Hrs.                     3 Hrs.
 
 
 
 
 

 

 

 
rbchallemiteamp
RBC Industries, Inc
80 Cypress Street
Warwick, RI 02888
USA
T:  888-RBC-EPOXY    |    888-(722-3769)    |    401-941-3000
F:  401-941-0150
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