information on sandblasting was sent to me by Jessie (1/15/06):I
love your website information on cast iron care. I have read all the
questions and answers, and I have only seen one entry on sandblasting
the old pans.
Unfortunately I am
officially old enough to have a lot of experience with cast iron and a
lot of other things. Good thing I am a quiet guy or I would never shut
up, trying to distribute my wisdom - heh, heh, heh!
I have a nice
collection of cast iron ware that I have picked up mostly at second hand
stores or yard sales. That, by the way is the most economical way to buy
them. Since I don't know or trust where the pans come from or what has been in
them, I always sandblast them. I have always worked where a sandblaster
was available for the employees to use, so I always blast them clean and
start over with the seasoning. You do get a more uniform look to the
different types of blasting media. Glass bead is finer and lest abrasive
than graded river sand used by some. It does not matter much, just pay
attention to what you are doing and just get it down to bare metal and
call it good. You would have to be a moron to sit there holding the
blaster tool for an hour in one spot and blast a hole right through the
pan. My apologies to you morons out there! I usually cure at the warmer
end of what I hear others have done. I do it at about 405 degrees F. 425
degrees F. also works well.
It is normal for
them to smoke like crazy for an hour or so. I always cure (season) a
clean, shiny or new pan at least three (3) times before I start using
it, The turning the pan upside down trick is best too, I believe.