Cheap thermal computer paste. The Vio 1.5g heatsink thermal compound helps the heat dissipation from a CPU to a heat sink. Thermal grease needs to be applied in thin layers to increase heat transmission - the idea is to fill only the air gaps with the paste and nothing more. This heat sink paste for CPU is made up of silicone compounds. 15G TUBE OF METAL OXIDE. StarTech 1.5g Metal Oxide Thermal CPU Paste Compound Tube for Heatsink. StarTech 15g Metal Oxide Thermal CPU Paste Compound Tube for Heatsink. Thermal Grease CPU Heatsink Compound Syringe. Vio SILVGREASE1 1.