[Sentoa] ZINC SEALANT

Randy Hageman randylhageman at gmail.com
Tue Nov 15 15:33:44 EST 2016


Kirk,
I have always used teflon tape when installing heat exchanger zincs,  to
prevent leaks.  At the next scheduled change of the zincs, they are always
eaten away as they should be, indicating they are functioning well as a
sacrificial anode.

Randy Hageman
Legacy 26 (previous owner)
Anacortes

On Tue, Nov 15, 2016 at 11:55 AM, Dave Jones via Sentoa <
sentoa at lists.sentoa.org> wrote:

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> ---------- Forwarded message ----------
> From: Dave Jones <senojev at aol.com>
> To: sentoa at lists.sentoa.org
> Cc:
> Date: Tue, 15 Nov 2016 14:55:29 -0500
> Subject: Re: [Sentoa] ZINC SEALANT
> Kirk,
>
> IMHO sealant will not prevent good metal-to-metal contact sufficient to
> allow the anode to perform its intended function. It is not designed to be
> a complete gasket but rather to fill any voids to preclude leakage.
>
> David Jones
> NT 37-212
> Sir Tugley Blue
>
>
>
> -----Original Message-----
> From: David Bell via Sentoa <sentoa at lists.sentoa.org>
> To: Kirk Glenn <glenncpa at hargray.com>
> Cc: David Bell <pgisailor at gmail.com>; South East Nordic Tugs Owners'
> Association (SENTOA) <sentoa at lists.sentoa.org>
> Sent: Tue, Nov 15, 2016 11:47 am
> Subject: Re: [Sentoa] ZINC SEALANT
>
> Attached Message
> From David Bell <pgisailor at gmail.com>
> To Kirk Glenn <glenncpa at hargray.com>
> Cc South East Nordic Tugs Owners' Association (SENTOA) <
> sentoa at lists.sentoa.org>
> Subject Re: ZINC SEALANT
> Date Tue, 15 Nov 2016 11:47:08 -0500
> For zinc installation the threads are tapered to allow a no leak fit. Any
> sealant defeats the continuity of the zinc with the engine, defeating it's
> purpose of a sacrificial anode. IMO
> Dave Bell
> Escapade
> 37-058
>
> On Nov 15, 2016, at 10:25 AM, Kirk Glenn <glenncpa at hargray.com> wrote:
>
> I RECENTLY RECEIVED A NEW HEAT EXCHANGER FOR MY ONAN GENERATOR- BEING AN
> INQUISITIVE CUSS I DECIDED TO REMOVE THE FACTORY SUPPLED ZINC. I GUESS I
> WAS A LITTLE SURPRISED WHEN I SAW THAT AFTER THE FIRST THREE THREADS OF THE
> BRAS ZINC HOLDER(WHICH SCREWS INTO THE BODY OF THE EXCHANGER) THERE WAS AN
> APPLICATION OF SOME SEALANT OR PIPE DOPE –GRAY IN COLOR.
>
> WHAT SAY YOU BOATERS THAT ARE SMARTER THAN ME?
>
> ALSO PLEASE NOTE IT TOOK OVER A MONTH TO GET A REPLACEMENT EXCHANGER-THE
> ONLY ONE IN EXISTENCE WAS IN SINGAPORE.
>
> CAPTAIN KIRK
> FIRST LIGHT
> 37-73
>
>
>
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