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Old 27-04-2013, 08:57   #1
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Zinc fish

There is a back core to my over the side zinc "fish". Is the black core sacrificial anode like the outer zinc material that seems to be close to fully gone?
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Old 27-04-2013, 09:00   #2
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Re: Zinc fish

I would say no - the core is what the zinc is moulded around to keep it slipping off the wire.
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Old 27-04-2013, 09:48   #3
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Re: Zinc fish

wow, I had no idea they werent solid zinc.
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Old 27-04-2013, 10:51   #4
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Re: Zinc fish

Here's a different question about Zinc fish: I have one over the stern, with the clip attached to my grounded backstay chainplate. It has been getting coated with a white plaque, I assume Zinc Oxide. I've read that this can happen in brackish water, but we're in Friday Harbor, which is pretty salty. Any suggestions?
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