RTV-2 platinum-cured 1:1 addition-type liquid silicone rubber

In the field of mold making, RTV-2 platinum-cured 1:1 addition-type liquid silicone rubber has become an ideal material for making high-precision, high-quality molds due to its unique properties.

1. Advantages of RTV-2 platinum-cured 1:1 addition-type liquid silicone rubber in mold making
High-precision replication capability
The curing shrinkage is extremely low (usually less than 0.1%), and all details of the mold prototype can be accurately replicated, including complex textures and tiny structures.
Suitable for making high-precision molds, such as jewelry, artwork, precision parts, etc.

Excellent mechanical properties
After curing, it has high elasticity and toughness, and can withstand multiple demolding without deformation or damage.
It has a wide hardness range (usually Shore A 10-80), which can be adjusted according to needs to adapt to different mold usage scenarios.

High temperature and chemical resistance
It can work stably in the temperature range of -50°C to 200°C, suitable for high-temperature molding processes (such as resins, waxes, low-melting-point metals, etc.).
It has good tolerance to most chemicals (such as resins, polyurethanes, epoxy resins), extending the service life of the mold.

Easy operation
The 1:1 mixing ratio simplifies the operation process without complicated weighing or calculations.
Good fluidity, can easily fill complex shapes and small gaps, and reduce bubble generation.

Environmentally friendly and safe
Adopting a platinum catalytic system, no by-products are generated, non-toxic and odorless, and in line with environmental protection and food grade standards.

General parameters

2. Application scenarios of RTV-2 platinum-cured 1:1 addition-type liquid silicone rubber in mold making
Jewelry and artwork molds
Used to make high-precision jewelry molds, which can perfectly replicate complex patterns and details.
Suitable for molding materials such as resin and wax to meet the needs of artistic creation.

Precision parts molds
Used to make precision molds such as electronic components and mechanical parts to ensure the accuracy of size and shape.
Suitable for small batch production or prototype development.

Food grade molds
Comply with FDA standards, it can be used to make food molds such as chocolate, candy, cakes, etc., which is safe and non-toxic.

3D printing and rapid prototyping
As a rapid prototyping material, it is used to make molds with complex structures and shorten the product development cycle.

Industrial molds
Used to make industrial molds of materials such as resin, polyurethane, epoxy resin, etc., with excellent high temperature resistance and chemical resistance.

3.Main feature :

1. Environmentally friendly, non-toxic, tasteless, non-corrosive, passed FDA food grade, MSDS, ROSH and other certifications.

2. Low viscosity, good fluidity, convenient operation and easy pouring; it can be cured at room temperature or heated.

3. Excellent physiological inertia, waterproof, ozone resistance and aging resistance, high tensile toughness, and many mold turning times.

4. High chemical stability, high and low temperature resistance, can be used for a long time and maintain its performance at -55°C to 220°C.

5. No low molecules are released during the cross-linking process, so the volume remains unchanged, the shrinkage rate is as low as 0.1%, and the precision is high.

4.Mold making process of RTV-2 platinum-cured 1:1 addition-type liquid silicone rubber
(1) Prototype preparation
Clean and process the mold prototype to ensure that the surface is smooth and free of impurities.
(2) Mixing and degassing
Mix components A and B in a 1:1 ratio, stir evenly and vacuum degas to avoid bubbles affecting the quality of the mold.
(3) Pouring and curing
Slowly pour the mixed silicone rubber onto the prototype to ensure that the details are completely covered.
Cure at room temperature or under heating conditions, usually for a few hours to a day.
(4) Demolding and post-processing
After curing, carefully demold and check the integrity and accuracy of the mold.
Surface treatment or secondary curing can be performed as needed.

5.Packing and shipping:
10Kg/set (A component 5Kg +B component 5Kg)
40Kg/set (A component 20Kg +B component 20Kg)
50Kg/set (A component 25Kg +B component 25Kg)

Packed in iron drum or plastic drum, transported as non-dangerous goods, sealed at room temperature 25°C, and protected from acid and alkali impurities, the storage period is 12 months.

6.Precautions :

1. Do a small amount of testing before use, and then put it into use.

2. Do not add color or powder to the silica gel at will before testing. Do not contact with water, acid, alkali or other organic matter containing sulfur, phosphorus and nitrogen, so as not to affect the curing of silica gel.

3. This product is a platinum catalyst silica gel, which cannot be in contact with condensation type silica gel. Before using the silica gel, tools and containers need to be cleaned with thinner water.

         4. If you need to color, please add the color paste to component B by 2/1000, and stir evenly.