Features
1. Easy Curing: polymerizes at room temperature (23C).
2. High tear and tensile strength
3. Long shelf life with low shrinkage (0.1%)
4. Fast mixing (1:1) and easy processing due to the low viscosity
Applications
1.RTV2 platinum cure silicone rubber is commonly used for making molds for industrial parts,various materials such as resins, plaster, and concrete,
decorative objects.
2.Special Effects: RTV2 platinum cure silicone rubber is used in the film and
entertainment industry for creating special effects and
prosthetics.
3.Food and Confectionery: RTV2 platinum cure silicone rubber is used in the food and
confectionery industry for creating molds for chocolates, candies,
and other food items.
Instruction of using Silicone
Processing and Instructions of MCPLA-L Series Addition Cured Liquid Silicones Rubber
Step 1
The ideal working temperature is around a constant 25°C. Best
results can be obtained at constant temperatures between 21°C and
26°C, in a clean, dry, dust-free environment. Avoid working in high
humidity.
Step 2
Measure product in accordance with your intended use. Prepare 1
part A to 1 part B by weight and pour into a clean, smooth-sided
container large enough to hold all the liquid and allow room for
mixing.
Step 3
The material must be mixed thoroughly for at least 5 minutes. make
sure to scrape the container sides, bottom, and corners as you mix.
Be careful not to whip excessive air into the mixture.
Step 4
Prepare a container(not silicone material),add the item and keep
them face up.
Pour the mixed silicone onto the container and distribute evenly to
cover the top of the item by at least 6-7mm
Step 5
Adjust the position and then let it cure, the bubbles will melt
gradually.
Step 6
Pull the item out of the mold after 24 hrs
Note:Contamination from sulfur (e.g., sulfur-based clay), amines, tin
compounds, cured polyester resin, some paints and some silicone
rubbers may inhibit surface cure of platinum-cured rubbers.
Apply a release agent, Although not usually necessary, a release
agent will make demolding easier when casting into most surfaces.
Shelf Life and Storage
RTV2 Silicone rubber must be used within 12 months from the
manufacturing date. Beyond this date, MC silicone no longer
guarantees the products confirms with the sales specification. In
order to preserve best properties it is recommended to follow
strictly the following guidelines:
Store the original packing tightly sealed and at a temperature
below 30 C
Use the product as soon as the packaging has been opened.
FAQ
Q1: Why the curing time of platinum silicone varies in environment
with different temperature ?
Platinum (addition) cured silicone rubber,Which with platinum
catalyst and uses heat to transform from liquid to solid rubber.
Therefore, platinum cured silicone rubber is sensitive to
temperature, platinum systems are often cured quickly with
heat,although they can also be formulated to cure at low
temperatures and room temperature.
Q2:why the bottom and sides of platinum silicone molds are still
gummy?
platinum silicone rubber requires accurate and careful mixing. The
material must be mixed thoroughly for at least 3~5 minutes. make
sure to scrape the container sides,bottom, and corners as you mix.
Q3: Why the platinum silicone rubber do not cure?
Platinum-cure silicone rubbers are critically sensitive to some
materials and will not cure under any circumstances when exposed.
like the materials below:
#Natural rubbers vulcanized with sulfur
#RTV elastomer is catalyzed with metal salts, e. G. Tin compounds
#Epoxy catalyzed with amines
#Certain organic solvents, such as Ketones, alcohols etc.
Q4: Is platinum silicone food safe?
yes! It's safe to contact Food and skin, which is suitable for
making food molds and making Prosthetics .
