Silicone components of high performance are mainly manufactured using liquid injection molding or compressed molding.
Liquid injection casting is the preferred method for production in large volumes requiring complex geometry and narrow tolerances. It provides excellent material efficiency, excellent dimensional stability and minimal debris performance, making it an industrial standard for precise silicone parts. Compressed casting remains the choice method for large components or special products with a small volume, with lower equipment costs and greater process flexibility.
Regardless of the casting technique used, post-hardening is an important step in determining final performance. This controlled secondary vulcanization significantly reduces compression regulation, improves elastic recovery and optimizes thermal stability, thereby ensuring long-term hermetic integrity at continuous voltage. In the manufacture of high quality silicone, post-hardening is a necessary process and should not be missed.