The ARCTIC MX-4 is a thermal compound used for cooling CPUs, GPUs, and power semiconductor components12. Its technical specifications include: Viscosity: 870 poise Density: 2.5 g/cm3 Thermal Conductivity: 8.5 W/mK Continuous Use Temperature: -50~150 °C Color: Grey Net weight: 4 g / 20 g1 Item model number: MX-4 Item Weight: 0.141 ounces Product Dimensions: 1.2 x 2.8 x 5.9 inches