When you talk about AS being conductive under extreme pressure you are refering to a low electrical resistance of the compound when the molecules are tighly packed. Less space between the molecules decreases the electrical resistance and electrons travel more freely between the metal molecules. No matter what other people say, Artic Silver is electrically conductive. Do you really believe silver (a metal) doesn't conducts electricity, please! You see, e. conductive is defined as a range measured in ohms. As an example, electrically conductive is not the same as static dissipative. But electrons transfer still occurs in both cases. The AS website says that AS is slightly capacitance in nature, which means that it charges up in electrons and then transfers it to a nearby object. So it can 'ground' itself with anything conductive at a reasonable distance. No matter how you define it Artic Silver always conducts electricity to some degree and it is not safe to smear any L bridges with it.