In a message dated 2/25/04 8:24:49 PM Central Standard Time,
bluewhale@jaxkneppers.com writes:
> I was curious about what to do with parts I blast clean regarding
> the pitting?
If you are sandblasting anything that is leaving that big of "pits", you are
going overboard. I've sandblasted my cab, fenders, and a host of other parts,
including the heavy metal of the rearend housing. All I've had to do, was put
on a heavy coat of primer, sand it down, and no signs of pitting. You could
use a "filler primer", that will more than fill the ruff areas that you
blasted. Watch what blasting media you use, and the pressure of the air line
you use.
I personally use silica sand, (with a good respirator), or regular sand, (run
through a screen for size), at about 80 to 100 lbs. PSI. It will leave a
textured feel to the material, but nothing that primer won't fill up. With
sheet
metal, you want to keep moving. Don't hold the blaster in one area too long.
Even if you have to come back to an area to hit it again, that is better than
holding in an area too long, creating heat, and warping the sheet metal.
Good Luck,
Pat Hollister
'58 step
West Burlington, IA.
http://community.webtv.net/TnJpot/TRUCKFORSALE
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