[Rhodes22-list] Table Base Corrosion

[ROGER PIHLAJA]

Hi All,



I think the original table bases are chrome plated bronze.  The table base in the photo looks like Zamak, which is an alloy of zinc, aluminum, copper, and magnesium.  Zamak is not rated for salt water service.  Zamak and stainless steel will bimetallic corrode very quickly.  You would have been better off using galvanized fasteners.



Roger Pihlaja

S/V Dynamic Equilibrium



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________________________________
From: Rhodes22-list <rhodes22-list-bounces at rhodes22.org> on behalf of Ric Stott <ric at stottarchitecture.com>
Sent: Thursday, May 23, 2019 7:18:04 AM
To: The Rhodes 22 Email List
Subject: Re: [Rhodes22-list] Table Base Corrosion

It looks like an inexpensive replacement part and not the original. I have purchased these for the cockpit base and they last one season.
Ric
Dadventure
Hampton Bays.

Sent from my iPhone

> On May 22, 2019, at 8:10 PM, Chris on LBI <cknell at vt.edu> wrote:
>
> I have a question for you experienced owners out there.
>
> I installed a brand-new table base (the metal receptacle in the floor) in
> the cabin at the beginning of last season (June 2018). A few days ago I
> noticed that it appeared to be very corroded. It began to fall apart as I
> removed it. The screws holding the base are stainless; they are screwed into
> the wood floor of the cabin, the carpet on the cabin floor is a synthetic of
> some sort. I had a plastic cover on the base for the past year.
>
> Is the severe corrosion caused because of the contact between the stainless
> screws and the (probably) zinc plated table base? If not, what would you
> suspect to be the cause?
>
> Please see the attached photo:
> <http://rhodes-22.1065344.n5.nabble.com/file/t902/Table_Base_Bottom.jpg>
>
> Thanks,
> Chris
>
>
>
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> Long Beach Island
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