RTV-2 platinum-cured 1:1 addition-type liquid silicone rubber
Platinum LSR chocolate molds are FDA food-grade certified to ensure
safety, accurately reproduce 0.05mm ultra-fine textures, are
temperature-resistant from -30°C to 200°C, and have a lifespan of
1000+ times. Easy to operate: vacuum degassing and pouring, 4 hours
of curing and ready for production; flexible demolding after
refrigerated mold filling, the finished product is smooth and
flawless. Compared with traditional materials, it has the
advantages of high precision, oil resistance, and low cost, and is
perfectly suitable for high-end customization, mass production, and
handmade scenes, making every chocolate a work of art!
1. Five core advantages of platinum-cured LSR chocolate molds
Food-safe material
Meets FDA standards, odorless, non-toxic migration, and long-term
contact with chocolate will not release harmful substances.
Compared to traditional silicone (which may contain sulfides), the
platinum curing system has no residual catalyst, avoiding chocolate
odor or discoloration problems.
Ultra-fine detail restoration
It can replicate complex textures of 0.05mm level (such as
chocolate petal veins, logo relief), with a surface finish of
Ra≤0.2μm, and the chocolate does not need secondary polishing after
demolding.
Heat resistance and durability
The operating temperature range is **-30°C to 200°C**, which is
resistant to both chocolate refrigeration (4°C) and short-term hot
filling (60°C molten chocolate).
The mold life is 1000+ times, far exceeding polycarbonate (about
200 times) or ordinary silicone (300-500 times).
Efficient demoulding and anti-sticking
Natural oleophobicity reduces the use of demoulding agents, and
some formulas can achieve **"self-demolding"** (such as when
chocolate contains ≥30% cocoa butter).
Tear strength ≥25kN/m, to avoid mold deformation and damage to fine
structures during demoulding.
Environmental protection and design flexibility
Waste can be recycled and customized colors (food-grade color paste
is required) and hardness (usually 20-40 Shore A hardness) are
supported.
General parameters
Model | Color |
Viscosity ( mPa.s ) |
Hardness (Shore A) |
Tensile Strength ( Mpa ) | Tear strength (kN/m) |
Elongation (%) | Mixing ratioA:B | Operating time ( h ) | Curing time ( h ) |
E600# | Translucent | 800 | 0 ±2 | 2 | 4 ±2 | 450 | 1:1 | 0.5 | 4 |
E605# | Translucent | 2000 | 5 ±2 | 3 | 12±2 | 500 | 1:1 | 0.5 | 4 |
E610# | Translucent | 2500 | 10±2 | 4.8 | 13±2 | 550 | 1:1 | 0.5 | 4 |
E615# | Translucent | 3500 | 15±2 | 5.1 | 16±2 | 470 | 1:1 | 0.5 | 4 |
E620# | Translucent | 5000 | 20±2 | 5.3 | 23±2 | 520 | 1:1 | 0.5 | 4 |
E625# | Translucent | 6000 | 25±2 | 5.5 | 26±2 | 450 | 1:1 | 0.5 | 4 |
E630# | Translucent | 7500 | 30±2 | 6.5 | 18±2 | 410 | 1:1 | 0.5 | 4 |
E635# | Translucent | 8500 | 35±2 | 7 | 18±2 | 380 | 1:1 | 0.5 | 4 |
E640# | Translucent | 11000 | 40±2 | 7.2 | 19±2 | 330 | 1:1 | 0.5 | 4 |
E645# | Translucent | 14000 | 45±2 | 8.2 | 16±2 | 320 | 1:1 | 0.5 | 4 |
E650# | Translucent | 15000 | 50±2 | 7.5 | 13±2 | 240 | 1:1 | 0.5 | 4 |
E655# | Translucent | 18000 | 55±2 | 5.8 | 12±2 | 150 | 1:1 | 0.5 | 4 |
E660# | Translucent | 20000 | 60±2 | 5.8 | 11±2 | 130 | 1:1 | 0.5 | 4 |
2.Industry application scenarios expansion
High-end chocolate brands: used to make limited edition artistic chocolate (such as imitation
jewelry shapes).
Baking workshops: produce chocolate decorative sheets with customized logos.
Food industry: batch production of hollow chocolate eggs or chocolate shells.
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.
