Innovation Cooling Diamond"7 Carat" Thermal Compound - 1.5 Grams Thermal Conductance: 4.5 W/m-K (data acquired with an ASTM D - 5470 thermal interface test instrument) Thermal Resistance: 0.25oC-cm2/W@ 100 BLT Average Particle Size: &lt;40 maximum particle diameter Compliancy: RoHS Compliant.