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%