Yes, silicone can be overmolded, but the process requires careful design and control. Silicone is often overmolded onto thermoplastic substrates to enhance functionality, durability, or aesthetics.

Successful silicone overmolding depends largely on the chemical compatibility between the silicone and the base material. To achieve strong adhesion, surface preparation—such as cleaning, plasma treatment, or the use of primers—may be necessary. Additionally, precise control of temperature, pressure, and curing conditions is crucial to prevent damage to either material during molding.

When properly executed, silicone overmolding produces durable, flexible, and high-performance components, commonly used in medical devices, consumer electronics, and automotive applications.