Re: Paint primer questions....

[chris gonzalez <chris24g@yahoo.com>]

I'd hate to be the guy who had to eat all them walnuts! :^p
yes, walnut shells are supposed to be the "gentlest" of the
abrasives....you can even use them to blast cams, pistons, etc... and
not worry about the motor, since any grains left over will just get
squashed, instead of scoring moving parts.

it's cool that they had enough control to get down to the original
primer. saved you a step.

do you know if they blasted your car in a booth and recycled the media,
or did they just blast it outdoors?

tia,
chrisg
http://www.dublife.com

--- Riley McDowall <roog@telus.net> wrote:
> At 7:53 PM -0700 5/29/01, chris gonzalez wrote:
> >now i have a question. i've been thinking about pressure blasting my
> >76, but people have told me that the friction and heat generated
> from
> >the sand could warp (i.e. cause ripples) in the sheet metal. who did
> >your car and what media did they use?
> >
> >chrisg
> 
> My '87 just got back from the blaster and they used crushed walnut
> shells
> as their media of choice for this job.  It doesn't get down to bare
> metal,
> but it does take off all the paint right down to whatever primer the
> factory uses.  I've never heard of the heat/warp issues you asked
> about,
> but I assume the walnut shell is safe because this shop uses it on
> all
> their restoration projects (and it's the biggest blasting shop in the
> city).  HTH!
> 
> 
> 
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