K4-PRO is a high quality thermal paste designed for use on computer BGA components (GPU, CPU, etc). K4-PRO has thermal conductivity K>4,6 W/mK * (3 times higher than common thermal pastes that are used on computers and commercial electronics) K4-PRO is applied very easily directly on the component and has no electrical conductivity. It can be heated up to 220 degrees (Celsius) and has a long operational life time (practically infinite) K4-PRO is produced in EU (Thessaloniki, Greece) and can be shipped to your location worldwide very fast. K4-PRO is a very low viscosity thermal paste (especially when heated during first use). It will cover the invisible gaps between heat sink and component perfectly. Computer Systems materials science laboratory testing: Method using a comparative technique (P. Karydopoulos, P. Frantzis, N. Karagiannis MSAIJ 2014).