I think carving waxes are injected and not poured into a mold. The
injection process causes the wax to be more dense that a wax that is
poured would be. Ferris carving wax has a small band of raised wax
on the side of the block. My guess is that the wax is pressed
through a die while it is at a temperature lower that the liquid
melt temperature. The die for some reason has a notch on one side
which causes the raised band on the wax.
I feel that carving wax when melted is not as crisp as the original
wax. I don’t believe you will be able to reproduce the texture and
consistency you get in carving waxes produced by the suppliers.
I recommend you look for suppliers that can supply you the amount of
wax you need at a reduced cost. Kindt-collins should be able to do
that. Good luck Lee