Many types of Plastic Fabrication Processes have emerged in recent years. The goal of these approaches is to cover a wide range of applications, plastic kinds, and part geometrics.

As a result, it is critical that everyone involved in product development becomes acquainted with the various possibilities accessible. The following sections describe the most prevalent plastic forming techniques used in production.

The Most Frequently Used Plastic Forming Techniques

Molding via Injection

This is one of the most used plastic processes. It entails melting plastic pellets, which might be thermostatic or thermosetting polymers.

Once the melted plastic has cooled sufficiently, it is injected under pressure into a mold cavity. Injection into the cavity fills and solidifies the plastic mold, resulting in the finished product.

This process is used by every plastic fabrication company. A steel or aluminum mold may be used.


Vacuum Casting 

Vacuum casting is a less expensive alternative to the prior procedure. It is a type of ‘copying’ technology used for custom plastic manufacture.

Vacuum casting is the process of producing a small batch of functioning plastic pieces or prototypes. As a result, for an efficient vacuum casting process, Master model of quality products polish is required. The master model is then encapsulated in a silicone mold in the following stage.

The silicone mold is cured at high temperatures, ensuring its strength and longevity. The mold is sliced open after curing, revealing a hollow area with the same proportions as the master model.

In a vacuum chamber, the cut mold is filled with the specified resin material. Many manufacturers combine resin with colorful pigments or metallic powder. As a result, you can be guaranteed of obtaining aesthetic or practical attributes. The resin is finally cured in an oven at high temperatures, following which the silicone mold is removed. Checkout


Blow Molding 

Here’s another popular plastic production method. It entails inflating hot plastic tubes to form hollow plastic pieces. The raw material used in blow molding is thermoplastic pellets, which can be any of the following:

  • Low-Density The polymer ethylene (LDPE)
  • High-Density The polymer ethylene (HDPE)
  • Polypropylene (PP)
  • Terephthalic Polyethylene Terephthalate (PET)
  • Polyvinyl Chloride (PVC) (PVC)
  • Co-polyester
  • Polystyrene



This is a one-of-a-kind procedure that requires heating thermoplastic to a flexible temperature. In the mold, the heated thermoplastic can then be molded into a specified shape. It will then be cut to form the finished product.

To produce completed products, thermoforming can employ a variety of mold types and methods. It could entail bending plastic sheets on strip heaters. Vacuum forming is also used in the molding of complicated plastics.

Tooling expenses for thermoformed items are often lower. This is due to the instrument’s inability to work at extremely high temperatures and pressures. Thermoforming is a versatile and effective method. It aids in the production of plastic parts such as disposable cups, medical equipment, and other items.

At the Pro Design Group, we offer 3-D printing, custom fabrication, and robotic trimming for your production, design, and development needs.