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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31 Dec 2023
Three factory workers discuss their business plan.

How to Build a Business Plan for Your Injection Molding Project

Why it’s essential to build a business plan for your injection molding project The success of an injection molding project is influenced by how well the project is planned and the foresight you have going into it. A well-crafted injection molding business plan serves as the blueprint for turning your vision into a profitable reality. […]

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15 Jul 2013

How Much Does Plastic Injection Molding Cost?

Injection molding cost can range anywhere from $100 to $100,000+ depending on the scope and intricacy of the project. A small and simple single-cavity plastic injection mold usually costs between $1,000 and $5,000. Very large or complex molds may cost as much as $80,000 or more. On average, a typical mold that produces a relatively […]

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16 Oct 2023
plastic injection molding parts on a table

5 Ways To Select A Plastics Manufacturer For Your Project

When you need plastic parts for your product, you want a plastics manufacturer that is reliable, affordable and produces good-quality parts. There may be a lot of options, so it is important to narrow down the field with the right criteria. What is a plastics manufacturer, and what do they do? A plastics manufacturer is […]

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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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09 May 2019
plastic parts made from plastic injection molding

A Rookie’s Guide to 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 parts […]

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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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20 Jun 2021
Prototype made out of metal.

How To Create The Perfect Plastic Prototype

Manufacturing plastic prototype – where to start The first step in every product’s life is prototyping. Whether it’s a brand new idea or an improvement on an old design, prototyping allows designers to see and test a product before it goes to production. From consumer goods to industrial, every field across every industry benefits from […]

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