Sil-Pads are a top-of-the-line product. They have excellent thermal properties. Do not use thermal grease with them. They're used to electrically insulate the fet or whatever from the heatsink.
I doubt they are reusable if you lift the fet from the pad.
landyacht318 wrote:
Well described. I wonder if the "sil pad's" presence is just for electrical insulation. I've shared some of these photos with an online friend who does electronics repair for a living and he said the thermal grease is a surprise, that the 'thermal pad',his term, is usually sufficient. He said the thermal pad is very easy to tear.
There is no thermal grease in between the pad, and the aluminum heatsink, nor between the aluminum heatsink and the casing, and the aluminum heat sink does not sit completely flat on the case, so I believe thermal grease will vastly help increase heat flow away from mosfet placed in these areas.
