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How to handle silicone mold sticking?

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Silicone molds can be used for mass production of cement, gypsum, cultural stones, candles, soap, resin, food, prosthetics, human skin masks, models, and other products. During the production process, both mold opening and production must undergo a demolding process. However, during this process, the phenomenon of silicone mold sticking occurs, which means that it is difficult to separate the mold from the product. In this case, destructive methods need to be used to solve the problem, Classifying molds and products can lead to product deformation or tearing of silicone molds, resulting in a win-win situation. How to handle silicone mold sticking, how to ensure product integrity, and how to prevent silicone mold sticking?

Let's first analyze why silicone molds stick to the mold. The main reason is due to the raw materials of the product, and the degree of demolding varies among different materials. Cement, gypsum, and cultural stone products are relatively easy to demould due to their rough surface and large pore size. Candle and soap types are also difficult to demould, with resin and silicone types being more difficult to demould. The small pore size and smoothness of the surface result in strong adhesion with silicone. When making this type of product for mold opening or mass production, the method of preventing mold silicone sticking can be achieved by evenly spraying release agent on the mold or mold. There are several methods to obtain mold release agents: ① purchasing mold specific release agents online or offline; ② Vaseline purchased by drugstore; ③ Use soapy water or Dishwashing liquid water. Note that when using the release agent, the release agent must be evenly sprayed on the mold type or every corner gap in the mold. When using soapy water or Dishwashing liquid water, the moisture must be dried. At this time, it can be dried with a hair dryer before further operation. Spraying release agents can not only prevent silicone molds from sticking, but also prevent non curing of the contact area between the mold and the mold during the mold opening process.

In addition to the product materials, there is also the molding process to avoid silicone mold sticking. When making silicone molds, the mold seeds should be cleaned and polished. During the mixing process, the silicone and curing agent must be evenly mixed, and attention should be paid to the details during the operation. Otherwise, if some parts do not solidify, it will become silicone mold sticking. Another aspect is to choose the appropriate mold opening method for the product structure.

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