<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body ><div>The main unit I use will go through a 5 gallon bucket of coal slag in about 2-3 minutes. It blasts as fast as you can move. The orface is about 1/2" and never clogs, so it is easy to reuse media.</div><div>-Scott Waters</div><div><br></div><div><br></div><div><div style="font-size:9px;color:#575757">Sent from my U.S. Cellular® Smartphone</div></div><div></div><br><br>-------- Original message --------<br>From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> <br>Date:05/01/2015 7:38 PM (GMT-06:00) <br>To: Personal Submersibles General Discussion <personal_submersibles@psubs.org> <br>Cc: <br>Subject: Re: [PSUBS-MAILIST] Zinc coating <br><br><br>Brian,<br>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 :-)<br>Hank--------------------------------------------<br>On Fri, 5/1/15, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br><br> Subject: Re: [PSUBS-MAILIST] Zinc coating<br> To: "Personal Submersibles General Discussion" <personal_submersibles@psubs.org><br> Received: Friday, May 1, 2015, 7:55 PM<br> <br> I<br> guess I should blast my viewports as well. Gee I made<br> them so smooth ! Brian<br> <br> ---<br> personal_submersibles@psubs.org wrote:<br> <br> From: "swaters@waters-ks.com via<br> Personal_Submersibles"<br> <personal_submersibles@psubs.org><br> To:<br> Personal Submersibles General Discussion<br> <personal_submersibles@psubs.org><br> Subject: Re: [PSUBS-MAILIST] Zinc coating<br> Date: Thu, 30 Apr 2015 20:38:21 -0500<br> <br> Not sure about yhe<br> zinc coating. I used Macropoxy as the first coat and High<br> solid poly as my second coat. I don't know if that<br> helps, but it is what I<br> did.Thanks,Scott Waters<br> <br> Sent from my<br> U.S. Cellular® Smartphone<br> <br> -------- Original message<br> --------<br> From: Brian Cox via<br> Personal_Submersibles<br> <personal_submersibles@psubs.org> <br> Date:04/30/2015 8:25 PM (GMT-06:00) <br> To: PSubs<br> <personal_submersibles@psubs.org> <br> Cc:<br> <br> Subject: [PSUBS-MAILIST] Zinc coating <br> <br> All, Ok,<br> I was going to take my pressure hull ( it's finished ,<br> BTW) down and have an outfit zinc coat it but now I'm<br> thinking that I should spend that money on a heavy duty air<br> compressor and a sand blaster and do it myself. Since<br> I'm sure I will need to be recoating places where<br> I'm doing thru hulls and such. But my question is do I<br> need to worry about the compatibility between the zinc<br> coating and the epoxy that will on over the zinc ?? <br> Should I put the zinc on the inside too ? Are there<br> different types of zinc coatings? <br> Brian<br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br> -----Inline Attachment Follows-----<br> <br> _______________________________________________<br> Personal_Submersibles mailing list<br> Personal_Submersibles@psubs.org<br> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br> <br><br>_______________________________________________<br>Personal_Submersibles mailing list<br>Personal_Submersibles@psubs.org<br>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles<br><br></body></html>