SIL-PAD 2000, .015", 6"X6" SHEET; Insulator Body Material: Fibreglass, Silicone Elastomer; Thermal Conductivity: 3.5W/m.K; Breakdown Voltage Vbr: 4kV; Thickness: 0.38mm; Volume Resistivity: 10ohm-m; Thermal Impedance: 0.57°C/W