What Thermoplastic Manufacturers Want You to Know

Learning about thermoplastics? The best place to start, whether you run a small business or a larger corporation, is with thermoplastic manufacturers. At Conversion Technologies International, we know a thing or two about that. Let’s start!

What is thermoplastic manufacturing?

So—how does thermoplastic manufacturing work? What is it, on a basic level?

When we work with thermoplastics, we’re essentially working with a certain type of plastic that becomes easier to shape and manipulate when heated. These plastics are malleable in a way that others aren’t without losing their durability and qualities. During the process, thermoplastic manufacturers inject the plastic resins into specialized molds. As the plastic cools, it takes on the shape of the mold.

The thermoplastics themselves come from a few different sources, depending on the specific type. In some cases, we use cellulose fibers found in wool and cotton to create thermoplastics. This is what we call a “natural” source. On the other hand, materials like polyester, nylon, and acrylic come from petrochemicals.

We begin with a base material, which we then heat to create granules. From there, we mix dyes into the granules to achieve the desired color. After that point, we cool the mixture. This separates it into smaller particles, easier to work with than the initial granules. After that point, thermoplastic manufacturers can simply reheat them as needed adding in chemicals and shaping the product depending on their needs. 

What kinds of processes do thermoplastic manufacturers use?

There isn’t one single type of thermoplastic manufacturing. The typical thermoplastic company in the USA may use a few different types of systems. Across the global market, three core types of thermoplastic manufacturing stand out.

These are:

• Injection molding. This option relies on an injection mold. We inject the composite material directly into the mold. As it cools and hardens, it takes on the “goal” shape.
• Thermoforming. When we thermoform, we use sheets of thermoplastic, forming them in or over molds. As they cool, you’ll typically have a bit of excess, which you trim away to create the desired final product.
• Extrusion. This final process involves feeding the heated thermoplastic through a die. You’ll then press or the material into the ideal shape.

That’s one of the great things about thermoplastic manufacturing—you aren’t stuck with a single process. You have options, and if you want to work with a third party manufacturing company. In fact, you may be able to find one that offers multiple processes. When you select thermoplastic manufacturing, you’re giving yourself a degree of opportunity that is difficult to find elsewhere.

What is the most popular type of thermoplastic?

There isn’t necessarily a type of thermoplastic that manufacturers would universally select above all others. The right thermoplastic for your project depends on—well, the individual project’s needs. If you’re uncertain about which thermoplastic best suits your needs, it’s important to consult with experienced thermoplastic manufacturers ahead of time.

However, the most commonly used thermoplastic is polyethylene. Why? Because it’s rather versatile, for one thing. There is more than one purpose for polyethylene—often, we use it to create plastic bags, bottles, food packaging, and flexible containers. The more uses we have for a single type of thermoplastic, the better.

Additionally, polyethylene is relatively cost effective. It’s also easier to process—and the easier a product is to process, the less likely you are to experience errors and long processing times.

What is the strongest type of thermoplastic?

If polyethylene is the most popular type of thermoplastic, which one is the strongest? That may depend on who you ask. Generally speaking, some of the strongest thermoplastics include:

• Polypropylene. The strength of this thermoplastic leads to it being one of the more commonly used options. Often, we use it to create textiles, automotive products, and packaging.
• Polyamideimide. This plastic, on the other hand, has a tensile strength of 21,000 PSI! We use it in jet engines and internal combustion engines, among other things. It’s resistant to both regular wear and tear and radiation.
• Teflon. You’ve probably heard of Teflon. It has amazing chemical resistance as well as a high melting temperature. It can withstand corrosion and chemical reactions.

Of course, you need to know a lot more about thermoplastics than what is the most popular, or even the strongest option. You also need to understand why we use thermoplastics, the advantages that come with this product, and why it might be a good idea to work with a third party manufacturer like CTI.

Frequently Asked Questions: Thermoplastics Edition

Can we recycle thermoplastics?

Aside from the malleability and versatility offered by thermoplastics, you have a lot to look forward to when using this product. We can use thermoplastics over and over. Because they’re moldable under heat, you can simply reheat the thermoplastic and reshape it. What this means is that you’re literally recycling the product. Not only can this be more sustainable—it also saves you money. You don’t have to buy new material as often, making thermoplastic far more cost efficient than some of its competitors.

What are some of the other benefits of using thermoplastics?

Thermoplastics are also durable and lightweight, noted for their chemical resistance and aesthetic appeal. In short, they leave much of the competition in the dust.

Can I outsource to thermoplastic manufacturers?

Yes, you can outsource to third party thermoplastic manufacturers. Third party manufacturers like CTI empower you to have more consistent results, while also having the time to focus on other parts of your business. You can even save time and money!

Learn more about your thermoplastic options—call CTI at 419-924-5566 or contact us here.