Liquid silicone rubber / Over molding

Silicone over-mold injection molding process involves two steps wherein a completed plastic or metal entity is placed into the mold site of an LSR mold, after which the LSR is over-molded directly onto the part.

One of the benefits of liquid silicone over-molded 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 over-molding is the only way to incorporate materials, aside from other thermoplastics and LSR, into the injection molding process.