What is the molding temperature of liquid silicone?

The liquid silicone molding temperature is usually in the range of 90°C to 120°C. The specific temperature depends on the type of silicone material, product structure and the required degree of vulcanization. During the thermal vulcanization process, the mold temperature is usually set within this range to ensure that the liquid silicone can fully flow and fill the mold, and at the same time, a cross-linking reaction occurs after heating to form a solid rubber product.

Different types of liquid silicone and different applications may have different optimal molding temperatures. For example, when producing silicone seals, the mold temperature may need to reach around 160°C. In addition, during liquid silicone injection molding, the mold temperature is generally above 100°C, while the injection temperature is roughly around 110°C to ensure that the silicone material can be well combined with the hard plastic encapsulated parts.

It should be noted that the curing (vulcanization) process of liquid silicone is a precisely controlled process. In addition to temperature, factors such as vulcanization time, exhaust conditions, and equipment debugging also have an important impact on the performance of the final product. Therefore, in actual operation, the most appropriate molding process conditions must be determined based on the specific liquid silicone formula used and product design requirements.