The hot-tanking process that they use on engine blocks removes all things that
are not iron, doesn't it? Grease, dirt, cam bearings, aluminum, etc. The
automatic dishwasher pump probably wouldn't survive a load of silica grit.
I would suggest maybe experimenting with a heat gun and scraper, followed by
bead blasting to get rid of the remaining crud. Wash it in Varsol with a stiff
bristle brush to get the grit out, then dunk it in a sink full of hot water to
remove the varsol.
Air dry.
If you're going to paint them, wipe them down with laquer thinner first.
Theo
> -----Original Message-----
> From: Bob Palmer [SMTP:rpalmer@ames.ucsd.edu]
> Sent: Thursday, December 10, 1998 8:44 AM
> To: Carmods@aol.com
> Cc: tigers@autox.team.net
> Subject: Re:Paint Removal
>
> John,
>
> One of the main virtues of "Powder" Coating is its durability. The powder
> is sprayed on and then baked to form a pretty impervious coating; no
> solvent involved. I'd call you local powder coating service and ask their
> advice as to how best to remove. My guess will be bead blasting. If you do,
> don't bead blast the inside of the covers; and in any case, clean them
> scrupulously afterward to remove ALL media from the surfaces, cracks, and
> crannies. Maybe hot-tanking afterward would be a good idea (or put them in
> your automatic dishwasher?)
>
> Good luck,
>
> Bob
>
> At 09:58 AM 12/10/98 -0500, you wrote:
> >I want to strip the paint off some aluminum valve covers that have been power
> >coated.Does anyone know of a solvant that would work. I've tried several
> >common paint removers and lacquer thinner but nothing works.
> > John Logan
> >
> Robert L. Palmer
> Dept. of AMES, Univ. of Calif., San Diego
> rpalmer@ames.ucsd.edu
> rpalmer@cts.com
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