Silicone overmolding is typically performed using a two-part liquid silicone rubber (LSR) material that is injected into a mold. The LSR material is then cured to form a solid, flexible layer that adheres to the substrate, such as plastic or metal. The liquid silicone rubber then bonds with the substrate material to create a strong, integrated part. https://www.yejiasilicone.com/silicone-overmolding/