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Midstate Mold & Engineering

Precision Plastic Injection Molders

Polypropylene

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Thermoplastic Highlight: Polypropylene in Plastic Injection Molding

A close-up of a plumbers hands installing red and blue insulated polypropylene pipes.

Plastic injection molding offers a wide variety of resins providing all sorts of unique characteristics. But polypropylene is one of the most popular material choices for businesses looking to create tough and flexible parts. The customizability, easy processing traits, and affordability of this plastic allow it to be used in many diverse applications. If you’re wondering whether you should consider this material for your next project, we’re here to help by providing the benefits, types, and applications of polypropylene in plastic injection molding.

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Tips for Better Plastic Injection Molding Parts for the Medical Industry

A hospital room with an MRI machine and several other machines composed of white plastics.

Injection molding manufacturers adhere to very high standards of quality, especially when it comes to producing parts for the medical industry. The plastic components created for medical devices directly impact the health and safety of users and patients alike, so material quality, traceability, and precision are vital areas of focus. To ensure these parts meet the exact specifications and tolerances required of them, manufacturers have to carefully consider several factors during the design phase. Let’s look at some of these tips to achieve better plastic injection molding parts for the medical industry.

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The Benefits of Plastic Parts in the Automotive Industry

A close-up of the rear of a blue car depicting a plastic plate surrounding the exhaust pipe.

We’ve come a long way since the Model T, transitioning away from heavy metal beams and brackets to lightweight yet durable plastics. Today, plastic parts support a wide variety of car functions, from the pedal and seat components to the powertrain and fuel system. There are several benefits to using plastics in car manufacturing, and skilled injection molders are well-versed in matching the right polymers to a car part’s performance needs. To discover just how useful this material can be, let’s review the benefits of plastic parts in the automotive industry.

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Force Majeure Declarations Affecting Plastic Injection Molders

A pandemic face mask discarded on snowy ground to represent the force majeure faced by manufacturers due to a combination of COVID-19 and the Texas snowstorm

A frustrating combination of disrupted supply lines from the global pandemic and the recent storm that devastated Texas has led to limitations in resin availability. As with any industry, this is creating a disparity in supply and demand, resulting in soaring plastic prices and force majeure declarations – meaning an inability to fulfill a contract due to an unforeseeable circumstance. This has led to some vendors revising part specifications or material requirements to sidestep the crisis. Let’s take a closer look at the recent and frequent force majeure declarations and their effects on plastic injection molders.

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What’s the Best Transparent Plastic for Injection Molding?

A clear bottle made of transparent thermoplastics on top of grass

Molding clear parts – such as water bottles or food-grade storage items – requires more focused attention to detail and stricter processing controls compared to non-transparent injection molding. Each transparent polymer has varying properties that can influence a company’s decision, including differing levels of strength needs, temperature requirements, and chemical resistance. Even environmental factors such as UV radiation can cause degradation in outdoor equipment utilizing clear plastics. That’s why it’s important to familiarize yourself with the best transparent plastic for your needs.

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The Most Popular Thermoplastics Used in Injection Molding

Colored polymer granules in glass flasks in factory.

There are a lot of things that go into making plastic parts. But the single biggest choice that will affect multiple categories of strength, price, flexibility, production speed, and even mold design during the project is the kind of plastic resin you pick for your production. It’s also a decision that needs to be made by the client, not the mold or part designer. All we can do is suggest plastics based on your needs. Today we’re here to provide you with some background on the four most popular thermoplastics and why they are so often used.

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