Decorative Electronics Industrial Hallemite Flooring and Construction

RBC-4501 Technical Data Sheet

Type:  Electronics  
Print this page  |  
 

 

RBC-4501 is a low viscosity, UL listed epoxy for 94 V-O flame retardancy. It is designed for applications where thermal conductivity, excellent electrical insulation, high heat distortion and superior thermal shock properties are required. RBC-4501 can be cured at room temperature or elevated temperature to fit a variety of applications. It can be used as a heat sink for large castings or as an encapsulant for heat generating components. AB-56 hardener can be used for applications requiring fast cures.
 
HANDLING PROPERTIES:
Mixed Viscosity @ 25oC,cps                                                                      9,500
Shelf Life, (closed Container @ 25oC)                                                      12 Months
 
PHYSICAL PROPERTIES (CURED):
Color                                                                                                           Black
Specific Gravity @ 25oC                                                                             1.44
Hardness, Shore D                                                                                      87
Linear Shrinkage, in./in.                                                                              0.004
Moisture Absorption 24 hr. water boil, %                                                    1.3
Izod Impact Strength, ft. lbs./in. of notch                                                    0.25
Tensile Strength @ 25oC, psi                                                                    6,300
Compressive Strength @ 25oC, psi                                                         15,950
 
THERMAL PROPERTIES (CURED):
Thermal Conductivity, cal/sec/cm2/oC/cm X 10-4                                    30
Thermal Stability, 1000 Hrs. @ 175oC, % Wt. Loss                                0.35
Coefficient of Thermal Expansion, in./in./oC X 10-6                                  27
Heat Distortion temperature, oC                                                               53
Operating Temperature Range, oC                                                         -65 to 130
 
ELECTRICAL PROPERTIES (CURED):
Volume Resistivity @ 25oC, ohm-cm                                                      5x1016
Dielectric Strength, volts/mil                                                                     480
Dielectric Constant @ 25oC, 100 KC                                                       5.7
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 fast, room temperature curing system with good chemical and thermal properties.
A-121      A resilient, low viscosity system with slightly longer pot life, that exhibits excellent
                 resistance to thermal shock.
 
 
 
 
MIXING INSTRUCTIONS: Weigh the desired amount of RBC-4501 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          20.0                               15-30 Minutes
A-121          12.0                             3 Hours
                                               
                                              
RECOMMENDED CURE SCHEDULE:
           
HARDENER                         CURE                   @25OC                CURE@65OC           CURE@100OC                         CURE@130OC
AB-56                                             6 Hrs.                 10 Min.                    ---                               ---
A-121                                           24 Hrs.                   3 Hrs.                 2 Hrs.                         1 Hr.
 

 
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
E:  support@rbcepoxy.com