T&T: Aluminum anodes

[Mike Maurice]

Steve,
I was not aware of anyone using Aluminum for anodes on boats, but you 
are right. I think the reason AL has not be popular in the past was 
mostly a matter of cost. Zinc was a lot less expensive than AL in the past.
A quick search of the internet shows many suppliers. A quick check to 
see what the prices are like seems like AL anodes are not much more 
expensive than zinc, today.

See the following link for the problem with AL anodes.

http://www.corrosion-doctors.org/CP/an-aluminum.htm

Here is an interesting article from BoatUS
http://www.boatus.com/seaworthy/galvanic/default.asp

All very interesting.

Mike

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Capt. Mike Maurice
Beaverton Oregon(Near Portland)