It is composed simply of 90% copper and 10% tin. I have been pouring
this alloy for years myself and have already worked out all of the
specific qualities of the metal in regards to working properties,
how it takes a patina and how to fire it with specific paint
surfaces. I want to send my pieces out to a company that can do the
moulding and casting and finishing for me. It does not have to be the
brand name exactly, but the same make-up. I can’t use any alloys that
contain zinc as it effects the color/patina/weight of the pieces and
there were allergy issues when I had pieces poured with a zinc alloy.
And anything like sculptural bronze such as Everdure contains a small
amount of lead and would lead me back to the drawing board in
regards to the techniques I’ve already worked out. Does anybody know
where I can go to get what I need??? The companies I’ve talked to
already include Silver Cloud, Larry Paul, RM Manufacturing, Billanti.
All were extremely helpful but none pour this specific alloy. Thanks
for any help you can offer!
I have cast ancient bronze alloy (actually had to make more ancient
bronze alloy “on the spot” as the client brought 40 lbs and needed
60 lbs) and it is a beautiful material. I do not know what you are
trying to get cast, but we do both sculptural as well as jewelry
sized pieces. If you would like to contact me offline or
360-681-4240. I would be happy to talk with you and offer thoughts,
ideas etc. as well and cost estimates if you would like. I would
need some pictures (with scale notates), quantities, timeline, etc.
before I could give you an estimate but I would be/am happy and
willing to talk with you first. I could pour Rio’s alloy or offer
other sources of “ancient bronze” casting material if you would like.
Probably wont help in the short term but tin and copper can be
melted together without any separation or boil off that you get with
copper/zinc so it shouldnt be difficult to mix a batch and then get
someone to recast. This may mean using 2 companies but will give you
the required alloy which can be sent to the fine caster.
The companies I've talked to already include Silver Cloud, Larry
Paul, RM Manufacturing, Billanti. All were extremely helpful but
none pour this specific alloy.
I was considering farming out my castings, but honestly I love
melting metal too much.
The question you should be asking a casting company is “will they
cast metal you supply?”
One of the local casting houses offers this, you supply the metal,
they cast it up with a special run. However there usually is a cost
involved because of the separate run.