RE: [PSUBS-MAILIST] Paint...zinc primer

I agree with Vance. About twenty years ago I sandblasted the inside of my sub using a breathing apparatus and some big fans. Even if I was still that flexible, I would never do it again! The next sub I needed blasted was done by someone else. Best money I ever spent.

Another option to consider is having the entire hull “acid dipped”. There is a place not too far from me that can dip an entire car frame or body in an acid that strips it down to bare metal- removing paint, rust, everything. The acid is then washed off and the steel is ready to prime/paint. I have no idea how much it costs though.

Greg

From: owner-personal_submersibles@psubs.org [mailto:owner-personal_submersibles@psubs.org] On Behalf Of vbra676539@aol.com
Sent: Thursday, May 10, 2012 12:17 AM
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Paint...zinc primer

Sadly, I have some experience with this. I'll limit my answer to a K-350 as the Perry boats aren't really relevant. Here's the deal. You really can't do this kind of work without a forklift or a hoist of some sort, and arrangements to lay and/or roll the sub through 360 degrees. Forget climbing down in there to do the work. Think of standing or kneeling on the ground/floor with the sub upside down or sideways or whatever, overhead, so to speak. Then your guy can wriggle around as needed without having to be all the way inside the boat. It makes the difference between a good job and a shade tree one. My advice: Don't even THINK about doing a project like this on the trailer. The sandblast yard is right in that case. They simply would not be able to get the job done. However, if you can roll it, then you at least don't have to blast up, down, and sideways. Your guy can change positions, move the sub as needed, and pick his path. It is far, far better to have this done in a proper sandblast yard where they don't care about the noise, mess, and clean-up. They have the breathing hats and the high-vol dust collectors and big, big vacuums to clean up. If the sub is set up with the conning tower, and with the proper air handlers, it can be done. Been there. Done that. I can swear to it. And having that one on my resume, I'm here to tell you that I would be very hesitant to try the job with an amateur rig. In my view, it's a few hundred bucks VERY well spent to have the thing done with professional high volume equipment. Ask me in another few months, as I am prepping to clean my K-boat yet again to paint. And I ain't going to be doing it, ya'll. I'll be a bystander, and happy to write the check.

Vance

-----Original Message-----
From: Jon Wallace <jonw@psubs.org>
To: personal_submersibles <personal_submersibles@psubs.org>
Sent: Wed, May 9, 2012 1:02 pm
Subject: Re: Fwd: [PSUBS-MAILIST] Paint...zinc primer

Has anyone had the inside of their sub sandblasted?  I know it's tight

quarters and the service I talked to didn't know if they would be able

to get at the inside because the blasting material wouldn't have much of

an escape route from the cabin which would seriously cut down visibility.

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