Re: Re: [PSUBS-MAILIST] Aerospace and Marine Corrosion

[rjune@fuse.net]

My company does a lot of painting for the Military (Navy, USCG, etc)

I suggest the following:

1. Grind all sharp corners, edges, burnouts etc. - if this is not done, then later when the painting is done, these edges are the first place were the paint will start to erode, flake away.

2. Remove all oils

3. Sand blast all surfaces - this is important for two reasons: a. It removes all rust, mill scale, etc. i.e. it cleans the surface.  b.  It provides the surface roughness so that the paint will adhere or stick.

4. Paint as follows;
  a. Steel shapes, plate steel, ferrous castings - 2 coats of inorganic zinc epoxy primer applied to a total of 250 microns thick (125 microns each), this is a green colored primer. - 1 coat of polyurethane applied to 50 microns thick, (the US Navy uses Haze Grey (FSC #26270) but any color is fine.

  b. Hot Machinery - 1 coat of heat resistant aluminum


Roger June
REJ & Company
513-300-1189
rjune@fuse.net
> 
> From: jaytron@wideopenwest.com
> Date: 2002/10/26 Sat AM 12:37:09 EDT
> To: personal_submersibles@psubs.org
> Subject: Re: [PSUBS-MAILIST] Aerospace and Marine Corrosion
> 
> This might be useful, but right now I'm more interested to
> see if anyone knows of a good less expensive replacement for
> marine paint. Anyone?
> 
> Jay S.
>