What, if anything, do you guys use to prevent marine growth on your bonding/ground plates?

A good scrub brush on a wooden handle if growth starts.
Not like it's out of reach being less that a foot below the water line on the transom.

Mine are mounted on the deepest part of the hull, no way to reach them without going in the water.

Snorkel & a mask. Problem solved.
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Snorkel & a mask. Problem solved.
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I was hoping for an easier to implement solution. :)

Axle grease
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Axle grease
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Seriously? Does the axle grease conduct electricity?

No idea on the conductivity but keeps the fur off my trim tabs and other metal stuff
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