emperor piehead said:
great reply geofelt but i heard AS5 isn't that great compared to some new stuff now a days like MX4 or NT-H1; I just want to know for the future to help other people on the forums.
I have used AS5 and MX4, and could not tell the difference. Don't know about NT-H1. I think it is much more important to apply whatever paste well. Even then, there are differing opinions on methodology. Even different methods do not seem to make a significant difference.
The purpose of paste is to fill in microscopic pits in the mating surfaces so that air is not trapped. Air is a poor conductor of heat, compared to paste. But paste is poor compared to metal, so too much paste will act as an insulator. Not enough will not fill the pits. You need a goldilocks amount; not too much, not too little.