Need to zinc outboard support

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Ixneigh
Admiral
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Joined: Thu Sep 09, 2010 11:00 am
Sailboat: MacGregor 26M
Location: Key largo Florida

Re: Need to zinc outboard support

Post by Ixneigh »

So if I got a big chunk of magnesium and used is on salt water motors all the aluminum would be extra protected??
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Crikey
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Joined: Sun Apr 17, 2011 12:43 pm
Sailboat: MacGregor 26M
Location: Washago, Muskoka, Ontario, Canada, Earth, Singularity.Suzuki DF60A. Boat name: Crikey!

Re: Need to zinc outboard support

Post by Crikey »

Ixneigh wrote:So if I got a big chunk of magnesium and used is on salt water motors all the aluminum would be extra protected??
Unless my physics is seriously in error I think that would be the case. However, a magnesium electrode would probably last one tenth the lifetime of a zinc equivalent, at ten times the cost! If you ever had real magnesium 'Mags' on your car you'd remember how long they had that factory fresh look.

Ross
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