[PSUBS-MAILIST] K-600 has been blasted

[Rick Patton via Personal_Submersibles]

I didn't realize that the pressure hull was made up of three pieces of
rolled plate. Wonder why the aft most piece is so short? Don't think all
that heat put into the hull would be a good thing,
I had my sub sand blasted in pieces before they were all welded together
which made it alot easier. I think the reason I did that was that the hull
had been fully welded and then sat for quite a long time while life was
happening and the steel might have been hazing due to it being located at
my shop which was a block from the salt water. I made an enclosed place to
blast it knowing that it would be messy out of 2"X4",s and visqueen but it
failed about half way through from the air blasting out of the nozzle..
A ton and a half is a lot of sand! Good job Jon.

Rick



On Sun, Apr 2, 2023 at 6:09 AM Bernie Hellstrom via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Looking great👍👍
>
> Sent from my iPhone
>
> On Apr 2, 2023, at 11:56 AM, Jon Wallace via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> 
> And, first coat of paint.
>
>
> On Sunday, April 2, 2023 at 09:32:13 AM EDT, Jon Wallace via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>
> Continuing work on the K-600 and this is the result of sandblasting (see
> attached photos).  It took 10 hours and 3000 lbs of sand to complete with a
> 375 cfm compressor.  I'm now putting on a primer of Sherwin-Williams
> Macropoxy 646 (color white).  The working time for the epoxy paint has been
> about half of what the spec sheet states.  I'll follow up later with more
> details about the painting.
>
> Jon
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