How Liquid Silicone Is Processed into Ready-to-Use Raw Material

Liquid silicone is widely used in silicone labels, mold products, and apparel accessories due to its excellent elasticity, softness, and weather resistance. However, in actual production, liquid silicone cannot be used directly after opening. It must go through a series of standardized processing steps to ensure stable performance and consistent product quality.

Below is a complete overview of how liquid silicone is processed from basic material into ready-to-use raw material.

Color Mixing with Pigment Paste

Before production begins, liquid silicone must first be color-matched according to customer requirements. At this stage, pigment paste is added to the liquid silicone AB base material in precise proportions to achieve the desired color.

Proper color mixing affects not only the appearance of the final product but also the consistency during molding. Therefore, the pigment paste must be highly compatible with the liquid silicone material to ensure stable color distribution without affecting the silicone’s physical properties.

Thorough Mixing in a Mixing Machine

After color matching, the liquid silicone is transferred into a professional mixing machine for thorough blending. The purpose of this process is to fully integrate the pigment paste with the silicone material, prevent color separation or uneven tones, and improve overall material consistency.

Uniform mixing ensures that the liquid silicone reaches an optimal condition for further processing. This step is especially important for liquid silicone for molds, as material uniformity directly impacts the quality and appearance of molded products.

Vacuum Degassing to Remove Air

During the mixing process, air can easily become trapped inside the liquid silicone. If not removed, these air bubbles may cause defects such as pinholes or surface imperfections during molding.

To prevent this, the mixed liquid silicone undergoes vacuum treatment. By removing internal air under vacuum conditions, the material becomes denser and more stable. This process significantly improves surface quality, reduces defects, and enhances the durability of finished products.

After vacuum degassing, the liquid silicone material is fully prepared and ready for direct use in production.

Ready for Production Applications

Once color mixing, blending, and vacuum processing are completed, the liquid silicone achieves stable performance and consistent quality. It can then be widely used in the production of silicone labels, silicone molds, silicone patches, and various silicone-based products.

This standardized processing method not only improves production efficiency but also ensures reliable and repeatable product quality, making it an essential step in liquid silicone applications.