14 Oct 2024
A pair of clear, acrylic safety glasses rests folded on a blue background.

Guidelines for Acrylic Injection Molding Designs

Acrylic injection molding is a popular method for creating durable, transparent, and lightweight parts. Its versatility and resilience make it an excellent choice for various applications, from automotive components to consumer electronics. In this guide, we’ll explore why acrylic is a top choice for injection molding, how to design parts effectively, and whether acrylic injection […]

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15 Apr 2024
Three cutting boards made of high-density polyethylene lay side-by-side on a countertop.

Polyethylene vs Polypropylene: What Are They & Why Use Them?

Polyethylene (PE) and polypropylene (PP) are both thermoplastic polymers, each possessing distinct properties and applications. When comparing polypropylene to polyethylene, it is crucial to recognize that they serve different purposes and are not always interchangeable. Polyethylene is derived from the polymerization of ethylene, while polypropylene results from the polymerization of propylene. Understanding these differences is […]

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11 Mar 2024
A close up of a blue zipper that's closed. The zipper is made of polyamide, also known as nylon.

What Is Polyamide & How Is It Used In Injection Molding?

Polyamide is a versatile and widely used material in various industries, including injection molding. This blog will explore the different types of polyamides, their applications, and why they are an excellent choice for your next injection molding project.   What is polyamide? Polyamide, commonly known as nylon, is a synthetic polymer. It’s characterized by its […]

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30 Jun 2023
Many colored plugs, screws, valves, fittings, pipes, plastic adapters.

How to Reduce Flash in Injection Molding

When making injection molded plastic parts, there are many things that can go wrong. It’s vital to tune injection molding machines and molds for parts to the right specification to prevent such errors. At Rex Plastics, we understand the importance in producing the highest rate of quality parts that we can. Minimizing rejected parts saves […]

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20 Dec 2021
close-up of small, blue plastic parts

Low-Volume Injection Molding: What You Need to Know

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 […]

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11 Oct 2021
close-up of small, blue plastic parts

Plastic Parts: An Intro to Manufacturing

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 […]

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13 Feb 2020
The metal plates of a plastic injection mold

The Plastic Injection Molding Process

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, […]

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23 Sep 2019

What is CNC Machining?

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 […]

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