close-up of small, blue plastic parts

Low-volume injection molding is the best option if you are looking to make parts in quantities of 100,000 or fewer. It’s used for mass-producing identical parts before committing to a long-term molding setup, whereas other parts may never need to be produced in higher volumes. This form of molding is one of the most common […]

20 Nov 2021
Plastic molding machinery in a factory.

What’s the best way to make sure that your injection molding is cost-effective, efficient, and consistent? Short-run molding! This specialized process involves using molds made from less expensive aluminum or steel. You can expect many of the same benefits of injection molding when producing small runs without sacrificing quality or performance; it’s an easy choice […]

close-up of small, blue plastic parts

Injection-molded plastic parts   Injection molding can create parts used in all sorts of projects and industries. From cars to computers, motorcycles to models, plastic injection molding is how modern products get made. In fact, plastic parts made with injection molding surround each of us every day. Plastic parts are so appealing to businesses because […]

07 Oct 2020

A Guide to Plastic Molding – Manufacturing and Process.   Plastic molding generally refers to plastic injection molding. This process is used to create plastic parts by injecting molten plastic into a metallic mold. After the plastic cools, the mold is opened, and the newly formed plastic part is released.    Common uses of plastic […]

  Get the custom injection mold you need   Rex Plastics can create custom, high-quality injection molds for nearly any application. These molds allow clients to create custom plastic parts at scale, for the lowest possible cost per unit. For more information about the cost of injection molded parts, check out our blog. From toys […]

05 Apr 2021
Woman operating an injection molding machine

What is a sprue? A sprue is a channel through which molten plastic flows into the mold. Specifically, the sprue is the entry point of the molten plastic, the vertical passage which plastic then flows through into runners and gates. In general, the entire assembly is commonly known as the sprue. The whole system is […]

When creating a product or part using injection molding, it’s easy to get caught up in that piece’s actual production. Things like material, size, and complexity are all important factors to consider and have a huge impact on production. But what about the look and feel of your product? If your product or part is […]

07 Aug 2020
colorful samples of plastic materials

Plastic injection molding can use many different types of plastic. The most common are polypropylene, polyethylene, PVC, and acrylonitrile butadiene styrene (ABS). These materials are durable and affordable, making them well suited for a number of different applications.    Materials Used for Injection Molding   When choosing a material for your project, it’s important to […]

06 Jul 2020

What is Insert Molding?   Insert molding is the process of injecting plastic around an object, usually metal. This creates a single piece using two or more materials. Common inserts include things like metal pins and threaded rods.   Why use insert molding?   Insert molding is widely used in manufacturing today because it allows […]