Plastic Blow Molding Process

All of our custom blow molded plastic products begin with a client consultation to determine the exact needs of the client. We discover exactly what is needed in terms of project specifications and offer recommendations to accomplish these goals.

We offer design services to make the project right.

The project is then moved into production in our 82,000 square foot, state-of-the-art plastic blow molding facility, which includes everything needed to complete the project, from first shot to final packaging and shipping.

Contact one of our experts now to discuss your plastic blow molding project. Fill out our online plastic project consultation form today.

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What is Blow Molding?

Blow molding is the most popular, efficient, and cost-effective way to produce hollow plastic items such as bottles, plastic drums, tubs, and storage tanks. Blow molded products are used in hospitals, automobiles, sporting equipment, and even toys. In fact, you probably have several blow molded products in your home right now!

The blow molding process involves taking a flexible amount of molten thermoplastic resin (known as a "parison"), encasing it in a metal mold, and injecting a quick blast of pressurized air. The air causes the parison to expand and instantly take the shape of the mold. Once the plastic hardens, it is taken out of the mold and any excess material is removed. The end product is a durable, easily replicable, and relatively inexpensive plastic item.

Custom Blow Molding History

The original concept for blow molding stemmed from the timeless art of glassblowing. Believing that the general process of blowing air into a malleable substance to form a hollow item could be done by machine, inventors Enoch Ferngren and William Kopitke unveiled the first blow molding machine in 1938. They sold their design to the Hartford Empire Company which then forged the first commercial blow molding process.

In the years that followed, engineers and inventors would utilize blow molding procedures for a range of household and industrial products. Today, blow molded products are used in varying industries from healthcare to agriculture and in everything from auto parts to plastic toys.