[PSUBS-MAILIST] Sand Blasting

[Jon Wallace via Personal_Submersibles]

David,
I think I'd wait on the outside for the welding to be complete.  They should be prepping the joints just prior to welding so that's shouldn't be an issue, plus the heat is going to discolor and/or burn any surrounding paint.  When you get it back, sandblast and prime the whole thing.
However...given the difficulty of both prepping and painting the interior, I think I would take the opportunity to get as much of that done first, as possible.  You can touch up afterwards any burn marks from welding but at least the bulk of it would be finished.
Jon

      From: David Colombo via Personal_Submersibles <personal_submersibles at psubs.org>
 To: Personal Submersibles General Discussion <personal_submersibles at psubs.org> 
 Sent: Tuesday, August 14, 2018 1:21 PM
 Subject: [PSUBS-MAILIST] Sand Blasting
   
Hi Guys, I have a question on sandblasting my hull parts. The initial fabrication is almost complete and I was thinking that I might want to have the parts sand blasted prior to welding them all together. Maybe even a light primer seal coat to slow flash rust as it may be at the welders for a couple of weeks. Any thoughts or advice would be appreciated. I know right now every time I get near the parts I'm covered in black smudges.

Best Regards,
David Colombo

804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
www.SeaQuestor.com

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