Hey all, I have used RTV rubber from the www.contenti.com for 15
years now. I never had to take any special storage precautions or had
the material go funny on me over many years of using the molds. It as
0% shrinkage and cures overnight. No oily discharge or anything else
I’ve heard described in this thread. I just pull them off the shelf
when I need to and they aleays work great. White metal can also be
cast in this rubber.
Contenti’s item number is 179-050 for 1 lb, 179-055 for 50 lbs.
Mark Moretti
Fredericksburg, VA
Mark how does the contenti rubber compare to the Dow Corning Silatic
RTV? I have been using it for about 25 years with not problems and
the molds are still like new?? The availablity is limited and I am
looking for a possible substitute. The one really great thing about
the Dow product is the different hardness for each different letter
product code. You can adjust to fit the need of each type of mold…
Frank Goss
Mark how does the contenti rubber compare >to the Dow Corning
Silatic RTV?
Hi Frank, I have never tried the Dow rubber, but I’m sure it’s great.
Being able to alter the hardness sounds very cool. The Contenti stuff
as far as I know just comes out in one hardness, but perhaps it can
be adjusted, you would have to ask them. It is pretty soft and
flexible and has very good tear strength. My suggestion is get a one
pounder, try it out and see if it fits your requirements.
Mark Moretti
Fredericksburg, VA
Mark how does the contenti rubber compare to the Dow Corning
Silatic RTV?
Hi Frank, I have never tried the Dow rubber, but I’m sure it’s
great. Being able to alter the hardness sounds very cool. The
Contenti stuff as far as I know just comes out in one hardness, but
perhaps it can be adjusted, you would have to ask them. It is pretty
soft and flexible and has very good tear strength. My suggestion is
get a one pounder, try it out and see if it fits your requirements.
Mark Moretti
Fredericksburg, VA