Plastic injection molding is used to create some of the most ubiquitous objects in the world, such as car parts, bottle caps, and toys. The process involves using either thermoplastic or thermoset polymers to develop the products. These materials are molded in different ways. This guide explains each process and offers some of the benefits of thermoplastic molding.

What Is Thermoplastic Molding?

During this type of plastic injection molding, plastic pellets are melted, then directly injected into the mold. As the part cools, the mold opens, and it is released. This process is often used to create plastic that won’t be exposed to high temperatures during its life cycle, such as the kind used in refrigerated beverage jugs. The finished part can be melted again in the future, which allows for an easy way to recycle it.

What Is Thermoset Molding?

During this process, a cold material is injected into a mold heated to a high temperature. At this stage, the product undergoes a hardening and curing process, giving it a tough and rigid finish. Because it is resistant to corrosion and heat, thermoset plastic is used for durable products that depend on especially high temperatures to establish their strength, such as medical and dental parts.

Why Is Thermoplastic Superior?

Thermoplastic plastic injection molding offers manufacturers advantages. The finished product can be reshaped if necessary, allowing for easier modification. Repeated reshaping will not damage the polymer thanks to its resilience and shrink-resistant properties. Thermoplastic is resistant to damage from chemical exposure and withstands impacts well. And because these polymers can be reheated and processed repeatedly, they're a more eco-friendly option. 

If you are looking for a company to handle your thermoplastic molding needs, turn to Pacific Integrated Manufacturing in Bonita, CA. For more than 15 years, their qualified technicians have used plastic injection molding to produce parts for the life science and health care fields. You can rely on them for everything from packaging to assembly services. Visit the website for more information on their services, or call (619) 921-3464 for a free quote.