The Process Behind Plastic Injection Molding

In an effort to promote understanding of the plastic injection molding for medical parts, automotive, electronics and other processes, Trademark Plastics has put together a knowledge base of expert articles and terms used in the manufacture of plastic parts for the benefit of our customers.


Plastic injection molding, the most important process in the manufacturing of plastic parts, is done by forcing melted plastic in to a mold cavity until it cools and forms a specific plastic shape. Plastic injection molding is very useful when the plastic parts that need to be produced are too complex or expensive to do by machine. With plastic injection molding, many parts can be made simultaneously (using the same mold).

Plastic molding manufacturers use several distinct molding techniques to produce plastic components. These techniques include thermoplastic and thermoset injection molding, transferring to resin, blow molding, gyratory molding, compression molding, thermoforming, structural foam molding and many others.

Trademark Plastics, Inc. take your concept from initial prototype through production, delivery and finishing. Trademark Plastics has a trained staff of experienced engineers, designers and toolmakers who work with clients from designing the concept for building the prototype and to the production of the actual custom mold. With the use of sophisticated computer aided design and technology and the latest equipment, they provide our clients with a technically superior mold and assure every product’s success.