[PSUBS-MAILIST] Aluminum thru hulls

[via Personal_Submersibles]

All the best for 2021!

 

30 micron anodizing and/0r marine grade will prevent corrosion. Additional should direct contact with (stainless) steel be avoided.

 

BR, Emile

 

Van: Personal_Submersibles <personal_submersibles-bounces at psubs.org> Namens Brian Cox via Personal_Submersibles
Verzonden: vrijdag 1 januari 2021 07:56
Aan: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Onderwerp: Re: [PSUBS-MAILIST] Aluminum thru hulls

 

I've used aluminum with stainless and haven't noticed significant corrosion .    The aluminum was anodized .

 

 



--- personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org>  wrote:

From: "Sean T. Stevenson via Personal_Submersibles" <personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> >
To: personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> 
Subject: Re: [PSUBS-MAILIST] Aluminum thru hulls
Date: Fri, 01 Jan 2021 01:51:51 +0000

Dissimilar metal corrosion. Aluminum will form a galvanic cell with carbon steel. The only way to prevent this is to protect them with sacrificial metal anodes made of zinc or magnesium.

Sean

-------- Original Message --------
On Dec. 31, 2020, 17:40, Brian Cox via Personal_Submersibles < personal_submersibles at psubs.org <mailto:personal_submersibles at psubs.org> > wrote:

 

Hi All,  Happy New Year !              Can anyone tell me why I can't make all of my different thru hulls out of aluminum ?   Fittings that will be potted and so forth for electrical .

 

Thanks,

 

Brian

 

 

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