WD 40 silicon lubricant


I have just finished the vacuum test and it worked good, after experiencing a lot of up and down by re-making the endcap. I am going to set my first dive next week and I am now having troubles in finding the WD 40 “water-resisitance”. Is the motor itself water proof without adding the silicon lubricant ? I found another type of WD 40 silicon lubricant, it is called “high performance”,I don’t know whether it is OK .


The motors are brushless motors so they are electrically isolated from the water. This means the motor is waterproof and will work underwater. The issue (which the silicon lubrication helps with) is the corrosion issue.