I like the RTV materials. You don’t have to spend a few or more
hundred dollars on the vulcanizer either. There are many
different rubber materials, some are harder, softer, fast to go
off, long/short pot life and storage life, some need stirring
before using some don’t and most all RTV’s do not have the
shrinkage problems of most of the vulcanized rubbers. I really
like polysulfide but a disadvantage is “cold creap” so you must
store the molds with a wax in place (no big deal really and in
fact, it is a good idea to do this with all rubber molds). Polys
have great shelf life, can be mixed to go off fast (20 minutes)
of slow (4 hours), can be thickened if needed and bubble release
from the master is very good. You don’t need a vulcanizer for
these materials but a vacuum unit really makes any RTV mold
bubble free and is really a necessity (you can use it to vacuum
your investment too and get better castings).
- Wax injectors. What brands, what do I look for. It doesn’t
need to be real fast. This is for limited production but I
would like to buy only 1 that I can grow with.
There are hand pump units for a couple of $100 but if you are
planning on “growing” you might be better off spending the money
on a pressure pot (more $100’s but again, in my opinion, well
- Wax. What do I look for. I suppose that if you use only
one wax you get one that does everything equally mediocre.
There are a zillion diffefent waxes and each has certain
characteristics. Try contacting Kindt Collins and see what they
recommend and see if they can send you some samples of the
recommended waxes. Also any jewelry supplier will have numerous
types. Try them and find the one, 2 or 3 that work for you. We
inject with Serria Red. For our operation it is the best. We
have tried a couple of want to be Serria Reds and they were not
anything like the real thing but most every wax worker will have
their own idea of what is best.
- Who has the best prices and selection.
Shop until you dorp!!! I like the mfgrs as a source as if I
need tech help, they are more abole to give me help than most any
wholesaler telephone person.
John and Cynthia/MidLife Crisis Enterprises
Maiden Metals/C. T. Designs/ Bloomin’ Wax Works. etc. No one is
guaranteed happiness. Life just
PO BX 44, Philo, Ca 95466
gives each person time and space. It is
Ph 707-895-2635 FAX 707-895-9332 up to us to
fill it with joy.