In a message dated 97-06-12 13:32:06 EDT, you write:
Anyone had any luck with the room temperature vulcanizing
rubber? I would love to make a mold of a couple of wax pieces I
have carved so I can duplicate them. I am not ready to dump money
into a vulcanizer (yet).
I use RTV regularly and thinks it works fine. I have had a number of molds
split excessively after a two or three thousand injections, but I don’t think
this is a problem, molds are not very difficult to remake. The life span will
vary with how much you have to flex the molds to release your injection.
Until recently I was using Silastic brand E-RTV by Dow Corning. Now I use a
product called Akron RTV Silicon Mold Rubber. I get it from Zero-D Products,
Inc., 800-382-3271. The Akron rubber is clear, which is nice for cutting, and
has a greater tear strength than the Silastic. There are two catalysts
available for the Akron rubber, one will give you a harder rubber, the other
will be softer. That’s a nice option.
Also, anyway to improvize a wax
injector- how about a syringe? Any help will be greatly
appreciated. Thanks dave J
I’ve heard syringe’s suggested before, I imagine that could work. I had a
doctor use a nice stainless steel one of about five ounce capacity on me
once. I’ve often thought that one would work beautifully.
If there is a jewelry shop nearby you could probaly get a couple injections