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Message 4 of 4
Posted by member Kenny Clark on Tuesday 25 November 2025
Peter, Robert,
Thanks for your comments.
Looks like aluminium is a better option all round, cost effective, longer lasting and helps reduce environmental impact.
Regards,
Kenny
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Message 3 of 4
Posted by member robert sneddon on Monday 24 November 2025
Hi Kenny
Interesting to get Peters view and his experience of using aluminium and very helpful.
I had also read that zinc was possibly going to be phased out. However i was running in automatic order mode and ordered my zinc trim tab anodes as i usually do from Anode Outlet.
I will definitely look more closely at aluminium in the future.
Robert.
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Message 2 of 4
Posted by member Peter Cox on Monday 24 November 2025
Aluminium lasts longer then zinc, works in salt and brackish water, is cheaper to deliver wholesale and retail, is becoming cheaper than zinc, and will be easier to obtain as zinc is gradually being phased out (for example, some thruster anodes have been exclusively aluminium for quite a time). From the original post, it seems that aluminium is also more environmentally friendly. I've been using ali for some time now and will not go back to zinc.
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Message 1 of 4
Posted by member Kenny Clark on Monday 24 November 2025
Hi All,
It's that time of season again. Starting to compile a To Do list for repairs/maintenance works over the winter period.
I was looking to order the same outboard zinc transom and trim tab anodes for salt water. I got this message back from supplier -
"As you may be aware, ZINC, as a material for sea anodes is being phased out, due to its environmental impact and cost, and most manufacturers (if not all) have switch to a new aluminium based alloy."
Here is a link to an article you might find of interest: https://www.yachtingmonthly.com/gear/guide-aluminium-anodes-70157
Link above seems to claim rule of thumb was to replace your anode when 50% of the zinc remained. For aluminium claim is this can be extended to about 30% in some cases before replacement.
Looking for any feedback from HOC who have a preference on which anode performs best in salt water.
Kenny
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