RS-2240 – Epoxy
RS2240 is a castable, filled epoxy resin specifically designed for high voltage insulator applications. This material provides excellent electrical grade insulation properties, high mechanical properties, and superior resistance to chemicals including concentrated acids, and mild alkalines. This material also offers superior arc resistance as compared to standard electrical grade epoxy materials. In addition, this material is non-flammable and meets UL94V-0 requirements.
Approximate Cured Properties
| Density | .065 Lb/Cu In | |
| Tensile Strength | 5,000 PSI | 3.5 Kg/mm2 |
| Flexural Strength | 8,000 PSI | 5.6 Kg/mm2 |
| Compression Strength | 15,000 PSI | 10.6 Kg/mm2 |
| Elastic Modulus | 1.4 MSI | 980 Kg/mm2 |
| Thermal Expansion | 18×10`-6 in/in/deg F | 32.4×10`-6 cm/cm/deg C |
| Dielectric Strength | 475 V/Mil | 18.7 KV/mm |
| ARC Resistance | 190 Sec | |
| Dielectric Constant | 5.2 @ 60 Hz | |
| Dissipation Factor | .030 @ 60 Hz | |
| Volume Resistivity @ 77 F | 1×10`16 ohms/cm | |
| Water Absorption | .05% | |
| Heat Distortion Temp | 220 deg F | 105 deg C |
| Thermal Conductivity | .8 Watt/Meter x K | |
| Outgassing TML | .21% | |
| Outgassing CVCM | .01% | |
| Outgassing WVR | .11% |
