13 Feb 2020
The metal plates of a plastic injection mold

The plastic injection molding process The basics of the plastic injection molding process: melted plastic injects into a metal mold. The plastic material cools inside the mold and hardens into the finished product. The product releases when the two halves of the mold separate and the plastic ejects.  How does injection molding work? Put simply, […]

What is a CNC Machine and How Does it Work?   CNC Machines are some of the most important tools used in modern manufacturing. They can perform an incredibly diverse range of tasks and are essential for product design. Because of the complexity of CNC machines, it can be easy to get lost when trying […]

09 May 2019
plastic parts made from plastic injection molding

From toy LEGO blocks to space shuttle turbine blades, plastic injection molding touches our lives every day. But what is plastic injection molding? Why is it so popular? And is the process right for your manufacturing needs?   What is injection molding?   Injection molding is a common manufacturing process for producing large volumes of […]

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Onshoring your plastic mold making means keeping production and jobs close to home, but it also has other benefits for American businesses. Not least of these are access and accountability. If you’re in the planning stages of your next plastic injection-molded product, and especially if you’re a startup learning the basics of mold making, there […]

You’re not alone. At any given moment, somewhere in the world, someone struggles with the same plastic injection molding challenge: you have a part that you need to modify, but you don’t want to buy a new one. Our advice to anyone facing this situation is don’t reinvent the wheel—especially when it comes to sprockets […]

27 Dec 2018

We have five decades of experience but are always looking for new and revolutionary ways for businesses to better utilize their products. For Rex Plastics, one example of this is the use of plastic injection molding by the medical industry. Medical applications for injection molding are numerous; they’ve completely changed the medical landscape — and […]

We all start somewhere. Even a business like Rex Plastics, rapidly closing in on our fiftieth anniversary, had humble beginnings. What makes us different? We understand the challenges faced by startups because for all our successes, we’ve never forgotten where we came from. That’s just one reason why we’ve been able to help so many […]