Tin cure liquid
silicone is also called condensation cure liquid silicone, molding
silicone. rtv*2 silicone which is a type of Room Temperature
Vulcanization Silicone rubber, contains two parts.It is the
materials of liquid shape which can be used in making rubber molds
to copy any solid subjects.Part A is a flowable liquid, part B is
the curing agent or catalyst.when the part A and part B mix evenly
at the ratio of **0:2 to **0:5, the silicone rubber will be cured
.
2.Characters of
below : 1. Good
characteristics of
easy-operation 2. Light viscosity
and good flowability 3. Low
shrinkage 4. Favorable
tension 5. No
deformation 6. Favorable
hardness 7. High temperature
resistance, acid and alkali-resistance and ageing
resistance
Can we do the
silicone according to your requirements ? Of course
! If you have any require
of our silicone ,we can adjust them
.
Color :
Accept to
customized
Mix ratio : 3% *5%
acceptable
Pot life and curing time : can be less or more
Hardness : whatever you want ,we do it .
Tensile strength &Tear strength are alway in the
improving
Viscosity : Low viscosity and high viscosity are acceptable
Elongation : We do this test by our own labe and technicial
department
Manufacturing
process
Step 1: Prepare and clean the prototype.
You must make sure your original molds perfect, fix the
original mold on a board, then using some assistant material
(like cardboard) to make a frame for to surround the prototype.
The frame is no need, if we make the mold by brushing
way.
Step 2: Take the
silicone and catalyst as the ratio **0:2 (silicone :
catalyst= **0:2), mix the silicone rubber and catalyst
evenly.
Notes: rtv silicone rubber is a kind of flowing liquid and it
contains two parts. Part A is a kind of flowing liquid and
part B is the curing agent. Remember to mix part A and part B
evenly, otherwise the silicone rubber will be partly
solidified and this will bring troubles for your final
operation. What's more, the finishes molds will have a short
life. All of these will cause a waste of silicone
rubber.
Step 3: Vacuum
pumping.
After mixed the silicone evenly, it is better to release the
bubble by vacuum
pumping.
Step 4: Pouring
cast or brushing cast.
After released the bubble, we can pour/brush the silicone
rubber on the prototype. Notes: Please finishes all the steps
within the operation time. If not, it will cause cross
linking reaction, and no more further steps will be
available. So, we have to pay attention to the pot life and
curing
time.
