[PSUBS-MAILIST] Zinc coating

[Alan James via Personal_Submersibles]

Hi Brian,there is a lot of information on the web about what to coatsteel hulled boats, yachts & ships with, however you might wantto go to your local marine chandlery & see what coating systemsthey have & what they suggest. That's what I ended up doing.Cheers Alan

      From: Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Friday, May 1, 2015 4:20 PM
 Subject: Re: [PSUBS-MAILIST] Zinc coating
   
Thanks for the info,  I'll probably talk to the paint/epoxy people and make sure all products are compatible. Brian

--- personal_submersibles at psubs.org wrote:

From: Jon Wallace via Personal_Submersibles <personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Zinc coating
Date: Thu, 30 Apr 2015 23:09:07 -0400

 
 Don't know the answer to this one.  The sandblaster I talked to swore a zinc thermal spraying protects steel better than anything else because it acts as a sacrificial anode.  But from what I can find out from other sources the zinc coating still needs to be covered by paint because sometimes it does not adhere permanently and it can chip.  So I have the option to have the hull zinc galvanized by thermal spraying but I don't know if it's worth the money.
 
 The sandblaster/painter I talked to said the coating goes on one side only, presumably the outside because it would be way too difficult to get the thermal sprayer into a small sub to effectively coat the inside.
 
 Jon
 
 
 
 On 4/30/2015 9:25 PM, Brian Cox via Personal_Submersibles wrote:
  
 

 All,   Ok, I was going to take my pressure hull ( it's finished , BTW) down and have an outfit zinc coat it but now I'm thinking that I should spend that money on a heavy duty air compressor and a sand blaster and do it myself.  Since I'm sure I will need to be recoating places where I'm doing thru hulls and such.  But my question is do I need to worry about the compatibility between the zinc coating and the epoxy that will on over the zinc ??   Should I put the zinc on the inside too ?   Are there different types of zinc coatings?      Brian  
 
 _______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
 
 
 _______________________________________________Personal_Submersibles mailing listPersonal_Submersibles at psubs.orghttp://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
_______________________________________________
Personal_Submersibles mailing list
Personal_Submersibles at psubs.org
http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles


  
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20150501/446257ba/attachment.html>