RBC-3215 epoxy resin is a modified, low-viscosity epoxy resin offering excellent wettability and air release. It is used both as an epoxy adhesive and epoxy potting resin (epoxy potting compound). It exhibits high peel strength, excellent shock and vibration resistance. Cured properties can be varied with the amount of epoxy hardener used, allowing a wide range of resiliency. It is ideal for bonding materials with different coefficients of thermal expansion and in addition, it bonds well to nickel, aluminum, nylon, polypropylene, glass and wood. As a room temperature epoxy potting compound, it offers long pot life, low exotherm, and good thermal and mechanical shock resistance. | HANDLING PROPERTIES: | Mixed Viscosity @ 25oC, cps Pot Life, (100 grms. @ 25oC) Shelf Life, (closed Container @ 25oC) | 6,000 2 hours
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 | Light Amber
1.07
84 to 86
0.005
0.55
1.35
9,300
11,500 | | 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 | 5.2
1.20
50
85
-55 to 100 | | ELECTRICAL PROPERTIES (CURED): | Volume Resistivity @ 25oC, ohm-cm
Dielectric Strength, volts/mil
Dielectric Constant @ 25oC, 100 KC
Dissipation Factor @ 25oC, 100 KC | 8x1012
430
3.3
0.018 |
(Note: The above properties are typical of a semi-flexible cure cured for 1 hour @ 65oC followed by 1 hour @ 120oC.)
MIXING INSTRUCTIONS: Weigh the desired amount of RBC-3215 Epoxy Resin into a clean containter and combine with AB-530 Epoxy Hardener in one of the ratios shown below. Mix thoroughly for a minimum of three (3) minutes by hand or one (1) minute by machine. | Rigid, Heat Resistnace | 100 parts RBC-3215 50 parts Epoxy Hardener AB-530 | | Semi-Flexible, Impact and Shock Resistant | 100 parts RBC-3215 75 parts Epoxy Hardener AB-530 | | Flexible, Excellent Peel Strength | 100 parts RBC-3215 100 parts Epoxy Hardener AB-530 |
RECOMMENDED CURE STRENGTH: Pot life ranges from 1-3 hours depending upon batch size and hardener ratio. Cure for 72 hours at room temperature (25oC) or 2 hours at 65oC. For optimum properties, cure 1 hour at 65oC followed by 1 hour at 120oC.
ASSOCIATED PUBLICATIONS:
RBC-3215 Epoxy Resin Material Safety Data Sheet (MSDS) AB-530 Epoxy Hardener Material Safety Data Sheet (MSDS) |
