[Elecraft] Thermal Interface, pads vs. grease question?

[Eric Swartz WA6HHQ - Elecraft]

On the KPA100 the transistor flanges may be connected to ground so the
thermal pads we use are not insulating.

On the K2 the PA transistor's flange is connected to the collector and is
not at ground potential, so we use insulated thermal pads there.

73, Eric  WA6HHQ
Elecraft
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Rich Lentz wrote:
> 
> Doesn't the thermal pad also provide electrical insulation?  After getting a
> low resistance when installing a MOD I discovered the problem was a small
> sliver of metal inbeded in the pad.  Thermal grease would not have this
> property without an insulator.