Running inrunner in water?

i have already waterproof the cables and connectors, i was suprised i didn’t have any troubles with that,
waterproofing the motor shaft , bearing is impossible, and i an more concerne with the water that stay between the windings, very hard to clean:

this one is good?

https://www.ebay.fr/itm/Corrosion-X-Liquid-250ml-Bottle-With-Trigger-CX250T/263525558807?hash=item3d5b58ea17:g:oCgAAOSwsUlal~4E