I pulled apart a couple dead ESC to see how they were built. Disassembled a Flycolor 150 and a Turnigy 180.
The FC is complete encased in silicone inside it's plastic case. I was able to chip/scrape/peel off most of the silicone.
The Turnigy was potted completely inside what I assume is an electronic friendly epoxy. The case was a bugger to remove and forget about getting that potting off.
I did discover a common problem with both units though. The cooling blocks are pathetic at best. The water isn't really moving heat in my opinion on either of them. I plan to add some cooling to the a Flycolor. Simple blocks made of simple K&S tube applied right to the fets. Then spray with conformal and throw away the case.
I don't have a fresh 180 to mess with.
I'll get some pics when I get it done.
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