How are you doing this. I have a vibrating tumbler, mixed
steel shot, and everytime I try this on earrings I get little
swirls and scratches in the metal on the face and back of the
earrings.
Nancy, I.e. the tumble polishing:I have a cheap vibrating tumbler
too, and this is what I do… First, I chuck the pieces into a
pale blue plastic pyramid medium,(available from Rio Grande, and
several other sources), with a small amount of water, just enough
to get everything wet, maybe 1/2 " to 1" of water resting on the
bottom of the tumbler. To this I add a product called Fastcut
deburring compound, according to instructions. I leave this to
vibrate away for a minimum of four hours, sometimes six. This is
a finecut medium, and will remove all light surface scratches,
but will wear fine details down if left too long. When this
process is finished, I rinse all work well, making sure to dig
out all of the annoying little pyramids that may have felt it
necessary to stick themselves in somewhere, and toss,(ever so
gently) into a mixed steel shot medium, again rinsed to lightly
wet…too wet, and there’s not enough friction to burnish, too
dry, and the shot beats the tar out of the work. To the shot I
add a liquid called Mr. Tumble also according to directions, and
tumble at least four hours, sometimes overnight. The pieces come
out looking hand polished, but remember that your initial hand
finishing work, sanding etc…is paramount to a good finish. Mr.
Tumble is something toxic I’m sure…I smell ammonia…and the
ingredients aren’t listed, so be cautious. That said, it does
work wonderfully, You can even store steel shot in it, and this
keeps the shot completely rust free. Please be judicious in its
disposal. Note:If the work is cast pieces, I first tumble for at
least four hours with pink pyramids and Fastcut, before the blue
and shot. This method seems to do the trick with my
very,(anal-retentive-obsessive-compulsive), detailed work.
Please note, that much of my work is hand stamped, at least on
the front If you care to see it, check out the Lapidary Journal
article: April 1996,p. 22, or the more recent piece in the Autumn
1997 Niche Magazine,p.75. Both Fastcut, and Mr. Tumble can be
obtained at: A&A Jewelry tools and supplies 319 W. 6th st. L.A.,
Ca 90014 (213) 627-8004 They also have a catalog available. Good
luck! I hope this helps. Lisa, (Byzantia) In,(I went horseback
riding, and watched hawks today in my back yard) Topanga,CA