Why 2 Shot Overmolding is Important
A lot of manufacturers are turning to overmolding today. Overmolding allows manufacturers to add value on their product line which is why it is important to them. the functionality, performance, and even aesthetics are improved when overmolding is done. Additionally, these days the total production costs of their products are lowered these days when the overmolding process is applied. Overmolding involves two processes and they are one-shot and two-shot processes. Overmolding is a process that bonds a thin layer of thermoplastic elastomer to the substrate of products.
When products go through the process of overmolding, an outer layer is created on them. The exterior layer is the one that produces the soft touch grip that is found with many products. several products such as toothbrushes and even modems can go through this process of overmolding. Apart from improving the quality of products, other benefits that overmolding process offer to them are many. Some of these benefits are like shock and vibration reduction, dampens sound, provision of electrical insulation, increased chemical resistance and also acts as a barrier to oxygen and moisture.
The process where one material is injection molded over the previous injection molded substrate is called 2 shot overmolding. electronics such as modems are examples of products where 2 shot overmolding is applied. Overmolding of these electronics is done with a more durable engineering thermoplastic. When overmolding is applied on electronics, they become chemical resistance, bio-compatibility and also superior abrasion. When 2 shot overmolding is applied on products, it combines the benefits of low pressure molding with conventional injection molding. Low pressure is the one will be started with when this process is being used to form a premolded device.
Safely encapsulated is one of the benefits that is enjoyed when products are premolded. After that process, a high pressure injection molding process can be used. When this process is applied, a rugged thermoplastic outer layer is sealed and protected. 2 shot overmolding offer many benefits to products especially electronics. Solvent resistance and biocompatible overmolding materials that should be rated by FDA are examples of other stuff that are needed by several medical and consumer electronic applications. A 2 shot approach on such products is applied by many manufacturers of such electronics.
Electronics undergo through overmolding process because it gives protection to them. Finishing of overmold is done with materials that customers’ needs. The first low pressure molding shot is important because it helps manufacturers confirm their gating location. Trapped air and unsightly flow fronts are some of the things that are prevented by low pressure molding which makes it to be important. Electronics such as batteries are enjoys improved heat and pressure distribution when the first low pressure molding shot is applied.