You did everything right: The silicone sealant conducts current in the liquid state. But for complete drying, access to the atmosphere is required. In other words, under the solidifying layer, it will be liquid for a long time. Epoxy resin polymerizes throughout the entire volume at the same time.
Also, about "alternitive potting materials" i wouild get something like few forms to do same "test fill" and check out resistance after it dries out wit megohmmeter.
Hmmmm......i saw in your other video that you iserted a drain into the inverter cover (and the speed sensor cavity). I think a drain in the sensor cavity is really all you need as any seepage from the seal will drip out there and warn you). Every water pump has such a drain hole, pitty Tesla did not think of that.
what is the potting rated for in terms of temp? Most potting that I have seen for pcb boards are rated for around 85c unless you get something upwards of 125c.
@@diyEVguy I was surprised that, on the second attempt, the temperature rise did not overcome the adhesive of the clear packing tape. You may have gotten lucky there. While I love the GE 100% silicone caulking -- I use it a lot -- it does not flow, and I really like how your potting material has a low viscosity, to flow into areas that might be difficult to pressure-fill with the caulking. It could probably be done, and is certainly a lot less money, but the cost of the MG Chem. stuff isn't all that bad, and I'm appreciative of the results. Finally, the DAP ALEX's only claim to fame is that it's paintable. I've used it quite a bit, and it's not a durable caulk for many use cases. The GE is much better, IMO.
