Some advice regarding conformal coating from @b264 :
He primarily uses MG Chemicals conformal coating. You want to get the bottles that come with a brush in the cap for applying. The go to is #419D, the acrylic coating. #419C is thinner, thus better for covering things like ESC mosfets, but unfortunately it is discontinued.
He also uses #4223, urethane coating, for bigger things like loop-keys and big wire connections. Although #419D also would work. (Note: #4223F is not the same, that is polyurethane)
wire → solder → apply 419D → heatshrink (before it dries) → more 419D
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419C was perfect from covering up direct FETs like on FOCBOX. Now I use 419D for that but CAREFULLY. Practice first on things in your trash can. You want to get them covered with a single coat. Fully covered, but with the thinnest possible coating. That’s only right on the actual FETs. Everywhere else including between them can be thick. In fact, I make sure to get right up to the edge and on the edge of them. You don’t want water to short out the “gate” pin of the FET which can lock up the motor at speed.
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MG Chemicals modified silicon and #422B are not as good.
Some of these conformal coatings shine purple in UV light!
Protip: if you have no blacklight, then you can take it outside into direct sunlight and they will all glow purple from the UV in the sunlight alone.
Sorry for posting for you Brian, if there’s anything else you want to mention or clarify, go ahead 