Dear Folks, I have a large incredible carnelian intaglio that is
driving me nuts. I am trying to get good impressions of it to cast.
Injection wax is not working, and I have tried chilling the seal.
Tonight I just used a paper based clay to make impressions, but
don’t expect to be able to cast that, as it is also water based,
investment will probably melt it. I will try however. I am using a
wax I got off ebay with a glue gun, and that is the only way I have
gotten good impressions, but maybe 1 of 3 is usable. I did cast one
that came out well. I am about to go back at it with the glue gun
I am asking two things. One, does anyone have suggestions for
material for impressions. I have not tried sculpy or Fimo clay. Does
that burn out? Two does anyone know of someone that will duplicate
an intaglio by ultrasonic? I have not asked my German source yet.
The intaglio is about 1.25 x 1 inch. It is in an overpolished 9K
seal mounting that has been repaired, and I broke one of the struts
pressing hard. I will have to dismount the stone to repair or
remount the stone. The carving is a classical male profile, most
likely Alexander. The detail is so fine that there are tiny zodiac
animals on the rim of the shield. It is quite a piece. I want to
mold it in cold compound at some point as well. I guess I can’t have
too much of a good thing…repro, repro, repro…