High Quality 5Pcs 1G Thermal Grease Heatsink Compound Paste CPU VGA N Conductive Heatsink Plaster GD900-1 Thermal Paste: Color: Gray Specific Gravity: 2.5 G/Cc Thermal Conductivity: 6.0 W/M-K Operating Temperature: -58~248 Degrees Fahrenheit GD900-1 is more viscous thermal paste, but it is easy to smear. Please smear it evenly like the thickness of A4 paper. It is better to highlight the super-fast cooling effect.