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. When overmolding is applied, the functionality, performance, and also aesthetics is improved. Additionally, these days the total production costs of their products are lowered these days when the overmolding process is applied. One-shot, or two-shot process are the ones that are involved in overmolding. A thin layer of thermoplastic elastomer is bonded to the substrate of products through a process that is known as overmolding.
An exterior layer is created when overmolding is done on products. The exterior layer is the one that produces the soft touch grip that is found with many products. Toothbrushes and modems are examples of the products that mostly undergo this process of overmolding. Overmolding offer many benefits to products apart from improving their quality. Shock and vibration reduction, dampens sound, provision of electrical insulation, improved chemical resistance and even a barrier to oxygen and moisture are examples of the benefits that you will enjoy when overmolding process is applied.
The process where one material is injection molded over the previous injection molded substrate is called 2 shot overmolding. 2 shot overmolding is mostly done on electronics such as modems. Such electronics undergo overmolding process whereby a more durable engineering thermoplastic is applied to them. Electronics become chemical resistance, bio-compatibility and also superior abrasion when overmolding process is applied. The benefits of low pressure molding with conventional injection molding are combined when 2 shot overmolding is used. Low pressure is the one will be started with when this process is being used to form a premolded device.
When the products are premolded, they are safely encapsulated. A high pressure injection molding process can be used after that process. The electronics will be sealed and protected with a rugged thermoplastic outer later when this process is applied. Electronics are some of the products that enjoy many benefits of 2 shot overmolding. A lot of medical and consumer electronics appliances needs other stuff such as solvent resistance and biocompatible overmolding materials rated by FDA. A lot of manufacturers of such electronics apply a 2 shot approach on such products.
Protection is provided by the overmolding process to electronics. 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. When the first low pressure is applied on electronics such as batteries, improved heat and pressure distributions are enjoyed by them.