Recently I have been casting bronze. I am using the Antique Bronze
from Rio I am puzzled about why I get a gorgeous golden color–on the
reddish to orange side, doing cuttlebone casting, and a brassy
looking yellowish color when doing lost wax casting process, using a
Both batches came out of the same bag of bronze. The only difference
is that when doing the cuttlebone casting, I was making a small item
and melting a small amount of the bronze.
For the lost wax casting I had 4 items in the flask,each about the
same size as the one being cast using the cuttlebone technique, and I
had to have an extra allowance of metal for the sprues and the
button… Hence I used a larger quantity of brass, and the melting of
the metal using the lost wax technique took considerably longer. I
was using the same torch and gas for both.
Would the the difference of the quantity and the extra time needed
for the large batch to melt account for the change in the color of