Tony
05-22-2003, 08:49 PM
As I searched for a magnesium anode (Boater's World has them...), I asked Canada Metal why fresh-water boats should use them. Here's their reply:
Because freshwater has a lot less chemicals (ions that you would find in saltwater)
and minerals, there is not the same amount of current that is flowing
through the water. Because of that Zinc needs quite a bit of current to
activate properly, and generally in freshwater your Zinc will not work at
all...several years down the road your Zinc will look relatively new
(providing you aren't in a "hot marina")
Magnesium is a super activated alloy which means that it can attract more
current through a less conductive environment such as freshwater, therefore
it will activate and protect your investment much more efficiently, and work
much like Zinc would in salt.
Basically, the less conductive environment, the more active alloy you want
to use, and vice-versa. Zinc won't work in freshwater, only Magnesium will.
Hope this helped.
Best regards,
Ty Seebach - US Martyr Sales
Because freshwater has a lot less chemicals (ions that you would find in saltwater)
and minerals, there is not the same amount of current that is flowing
through the water. Because of that Zinc needs quite a bit of current to
activate properly, and generally in freshwater your Zinc will not work at
all...several years down the road your Zinc will look relatively new
(providing you aren't in a "hot marina")
Magnesium is a super activated alloy which means that it can attract more
current through a less conductive environment such as freshwater, therefore
it will activate and protect your investment much more efficiently, and work
much like Zinc would in salt.
Basically, the less conductive environment, the more active alloy you want
to use, and vice-versa. Zinc won't work in freshwater, only Magnesium will.
Hope this helped.
Best regards,
Ty Seebach - US Martyr Sales