Food-grade translucent liquid silicone for chocolate mold remolding

Food-grade translucent liquid silicone for chocolate mold remolding. Contact the factory for orders: 13662816580 (same number for WeChat).

Preparation
Choose the appropriate mold silicone: Based on the mold's usage requirements and the characteristics of the product, select silicone with corresponding properties, such as different hardness, viscosity, and tensile strength. For example, when making molds with intricate patterns, choose silicone with lower viscosity and good fluidity to better fill the mold details.
Prepare tools and materials: You will need mixing containers, stirring rods, electronic scales, release agents, vacuum machines (if necessary), mold prototypes, etc. Ensure that the tools are clean, free of oil stains, and impurities.

Silicone Mixing
Accurate measurement: Follow the instructions of the silicone product to accurately measure the amounts of base silicone and curing agent. The ratio of base silicone to curing agent is usually specific, such as 100:2 or 100:3. Inaccurate ratios may affect the curing effect and performance of the silicone.

Thorough mixing: Add the measured curing agent to the base silicone and mix thoroughly using a stirring rod. Stir evenly to avoid uneven distribution of the curing agent. The stirring time is generally 3-5 minutes.

Bubble Removal Treatment
Natural defoaming: If a small amount of bubbles is mixed into the silicone during stirring, let the mixed silicone sit for a while to allow the bubbles to naturally rise to the surface and burst. However, for molds with higher requirements, natural defoaming may not be sufficient.
Vacuum degassing: Place the mixed silicone into a vacuum machine for vacuum treatment to quickly remove bubbles. The vacuum time and pressure depend on the amount of silicone and specific requirements. Generally, vacuum to -0.08MPa to -0.1MPa and maintain for about 5-10 minutes until the bubbles in the silicone are mostly eliminated.

Mold Making
Apply release agent: Evenly apply a layer of release agent on the surface of the mold prototype to ensure easy demolding after the silicone mold has cured. Apply the release agent uniformly to avoid missed spots or accumulation.

Pouring silicone: Slowly pour the degassed silicone into the mold prototype, or use tools like syringes to inject silicone into the detailed parts of the mold. During pouring, avoid generating new bubbles and try to keep the silicone flowing smoothly. For larger molds, pour in multiple stages to ensure the silicone fully fills the mold.

Curing and molding: Depending on the type of silicone and curing conditions, allow the silicone to cure at room temperature or a specific temperature. Room temperature curing silicone generally takes several hours to tens of hours to fully cure, while heat-curing silicone can cure in a shorter time, such as placing it in an oven at 60°C - 80°C for 1-2 hours. Control the curing time and temperature strictly according to the silicone product instructions to ensure the silicone achieves optimal performance.