Color : Dark Grey Density @25°C (g/ml) : 2.5 Viscosity @1rpm (m.Pa s) : 90,000 (=90 Pa s) Thermal Conductivity : 14.0w/m-K Thermal Impedance : 0.001°C -in/W Weight Loss after 96 hours @100°C : 0.15% Permittivity @106Hz: 2.4 Volume Resistivity : 4.0 × 10 × (Ohm.cm) Dielectric Strength : 3.3KV/mm (Non-Electrical Conductive) Working Temperature :-30°C~250°C