[PSUBS-MAILIST] Zinc coating

[hank pronk via Personal_Submersibles]

Brian,
What size compressor did you buy?  Sand blasting is a dirty job, but I love it, I find it relaxing.  Get yourself a good hood that has an air feed.  I did not know that silica sand is dangerous, that is all I use but I wear heavy coveralls and gloves.  My system is 80 cfm at 80 psi and that seems plenty.  I never reuse my sand because it looses bite and like Alec says, it will plug your tip, but not until you have crawled inside a tight space and got comfortable :-)
Hank--------------------------------------------
On Fri, 5/1/15, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] Zinc coating
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Received: Friday, May 1, 2015, 7:55 PM
 
 I
 guess I should blast my viewports as well.   Gee I made
 them so smooth ! Brian
 
 ---
 personal_submersibles at psubs.org wrote:
 
 From: "swaters at waters-ks.com 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 20:38:21 -0500
 
 Not sure about yhe
 zinc coating. I used Macropoxy as the first coat and High
 solid poly as my second coat. I don't know if that
 helps, but it is what I
 did.Thanks,Scott Waters
 
 Sent from my
 U.S. Cellular® Smartphone
 
 -------- Original message
 --------
 From: Brian Cox via
 Personal_Submersibles
 <personal_submersibles at psubs.org> 
 Date:04/30/2015  8:25 PM  (GMT-06:00) 
 To: PSubs
 <personal_submersibles at psubs.org> 
 Cc:
  
 Subject: [PSUBS-MAILIST] Zinc coating 
 
 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
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