Silicone overmold injection molding process involves two steps,firts is place plastic,metal or PCB entity into the silicone mould,the second is overmolding liquid silicone directly onto the part,make the silicone material and the other entity as a part.

One of the benefits of liquid silicone overmolding parts and components is that the manufacturing process allows for the use of a non-plastic substrate, such as steel. It is important to note that overmolding is the only way to incorporate materials, aside from other thermoplastics and LSR, into the injection molding process.