Thermal Impedance:＜0.12CW, Thermal Conductivity:＞2.93W/m-K, Colors: silver gray, Dimensions Injection tube: 55×8.5mm (wxd), G.W. Weight: 0.3 Gram, Specific Gravity: ＞1.7, Bleed:＜0.05%, Dialectric Constant:＞5.1(100Hz), Evaporation:＜0.001%, Silicone Compounds: 50%m, Carbon Compounds: 30%, Metal Oxide Compounds: 20%, Application Thermal grease can be used on the rear side of the heatsink, Certifications ROHS, temperature of heating resist instantaneous: -50~240℃, Operation Temperture: -30~180℃