You can get them at surgical supply stores (they’ve replaced latex
in many hospitals as surgical gloves due to the increasing prevalence
of latex allergies), so they have the full range of sizes. You can
also find them in home improvement stores in the painting section,
although you wont find the range of sizes or thicknesses there.
I use them all the time for investment mixing and for hand
protection when polishing with the flexshaft. I do NOT use any form
of glove when polishing with the polishing machine, as it’s just too
dangerous. There, I use the wonderful “hand shield” that artists use
(liquid glove)… it’s a thick white creme that you massage in before
starting your work. It disappears into your skin, but prevents other
things from adhering (like oil paints, gesso, polishing media) so
that they wash off very easily. You can find it at any arts supply
store…and possibly at “crafty” places like A.C. Moore or Michaels.
Look in the painting section.
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