How to waterproof a RC tank Heng long. (TOP 10 RC Tanks for Sale, Best RC Tanks for Sale, Radio Control Tanks Scale Model)

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Sweet tanks. They look neat
"hi sir.. may be not waterproof it's water-resistance maybe i'm right?
" Easier way is too just spray the electronics with anti corrosion stuff .
"i have the chally and ive epoxied the insides were the the detail parts are then i taped with gaffer tape then hot glued over that then ive sprayed the whole inside with spray rubber and re-soldered the battery and put it in the hull and wrapped the whole thing in tape and replaced the screws with magnets for convenience

ive done an underwater test and it all runs and doesn't take in water at all and ive put putty over the engine part and the driver view port plus all the little gaps in the tuuret because they where big open holes so now the whole tank can pretty much go fully submersed under water and there is no leaks at all
" On my t90 I modified the the turret and put the battery and the mother board inside the turret
you probably wanna clear coat your Mother Board with clear nail polish if you wanna submerge it.
is this epoxy glue
does it float?