S-810 Color: Grey Thermal Conductivity: >4.63 W/m-K Thermal Impdedance: <0.0087 ?-in2/W Specific Gravity: >3.15 Viscosity: 12500 Thixotropic Index: 280 ±10 1/10mm Moment Beared Temperature: -50-300? Operation Temperture: -30-280?; silicon conpounds:15%