The cows say they think they would love the new 2-pt. silicone
product.
Never argue, unarmed, with animals bigger than you. I plan to
try this stuff out. Looks like a great product. Especially as
compared with the extremely difficult to use no-shrink pink
vulcanizing rubber. Our waxer/mold cutter at work has never yet
managed to get it to work well, in spite of my attempts to help.
(Might be a hopeless cause, but I keep trying) Granted, the
vulcanizer he has to use is really old, with poor temp control
between the two plates, and doesn’t have an easy spot for a
thermometer either, to measure the temp. He got really
frustrated with the stuff the last time he tried using it…
You make an interesting point however, concerning more
fragile models but the previous product is not exactly water-thin
eather.
The Dow silastic product seems almost taffy like, it’s so thick
and sticky. Yet with patience, it flows, on it’s own, into
extremely tiny areas. I’ve never yet had it actually break a
model, though pouring large globs down one side of a mold frame
and not the other has on occasion dislodged the wax and sprue
from the support cone in the frame…
Also, I understand that it cures in about 15 min. and
you can even use a heavy book to clamp the mold, no need for a
vulcanizer. If you’re making just one or two molds and are in
something of a hurry( and is’nt everyone?) it should be much more
convenient. I confess that I’ve not tried it yet but on the
surface, this sounds like a definate improvement.
It sure does. My main questions relate to it’s durability and
production level compared with standard vulcanizing rubbers or
the dow product. Some products I’ve seen don’t seem to hold up
as well as I’d like over time, especially with heavy use of the
mold. Tear strength is another factor as well…