What is Injection Molding with Resin?

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ICOMold uses highquality thermoplastic resins for injection molding manufacturing. Thermoplastic resins are easy to liquefy or soften and then harden to achieve a custom part’s desired shape. Resins can also be recycled multiple times, which helps to save on costs and reduces unnecessary waste. ICOMold has a wide variety of thermoplastic resins available for injection molding. We can help you select the best material for your project. 

Injection molding resins (or thermoplastic resins) are plastics that are easy to manipulate or mold once heated to a certain temperature and become solid once they are cooled. Resins are ideal for the injection molding process because they can be liquified, injected into a mold using pressure, and then cooled to form a custom product.  Some common resins used for injection molding include crystalline plastics, amorphouse plastics, imidized plastics, polyethylene, polypropylene, acrylonitrile butadiene sturene, polyoxymethylene, polystyrene, and more. 

Advantages of Injection Molding Resin

There are many advantages to using resin for the injection molding process. The most notable is the numerous resins available to suit different designs. Some of the additional benefits of using thermoplastic resins for an injection molding project include: 

  • Achieve fine details and complex geometries 
  • Increased efficiency 
  • Speed 
  • Strength 
  • Use multiple resins at once 
  • Save on manufacturing costs 
  • Little to no finishing required 

The injection molding process is a highly efficient process that facilitates largescale production. Once a custom mold has been created to a customer’s specifications, the manufacturing process is rapid compared to other manufacturing processes. The ability to produce parts at a high output rate makes injection molding thermoplastic resins such a costeffective and efficient method. The strength of thermoplastic resins can be enhanced by using fillers. The result is a part that is lightweight and durable. Machines and robotics perform the bulk of the injection molding process. This reduces the cost of overhead and increases accuracy, passing on savings and benefits to the customer. 

Selecting a Thermoplastic Resin 

When selecting the best thermoplastic resin for your unique project, there are a few factors to keep in mind. First, consider the part’s final look, such as texture, color, or transparency. Next, decide on the strength, rigidity, or flexibility needed. Does your part need to be weather or chemical resistant? If you are creating a piece for aerospace, medical, food, or other use, you may need to meet specific regulatory requirements/certifications. Lastly, what is the life cycle of the part? How long does it need to last? ICOMold can answer any questions you may have about which resin is best for your custom part. 

Injection Molding Resin Process

To begin the injection molding process, the selected thermoplastic resin is heated into a liquid form. It is then added to a two-sided mold to create the desired shape. Once the item has cooled, it is dropped into a bin and then moved into postprocessing for finishing touches. The advantage of using injection molding for your thermoplastic resin part is that once your custom mold has been made, it can be used over and over again, producing a large volume of high-quality thermoplastic products. 

Applications of Injection Molding Resin

Thermoplastic resins are often used in injection molding applications when a lightweight and durable part is needed. Many industries commonly use thermoplastic resins to produce goods for both consumer and commercial use. Some popular applications of injection molded thermoplastic resin include: 

  • Toothbrushes 
  • Toys 
  • Medical applications 
  • Eyeglasses, sunglasses, safety glasses 
  • Food containers 
  • Tools 
  • Windshields 
  • Phone and computer cases 
  • Cellphone screens 
  • Screens for television and monitors 
  • Headlights 
  • Pens 
  • Lighting 
  • Bottles 
  • Aerospace parts 
  • Automotive parts
  • Construction components 
  • Electrical insulators and connectors 
  • Instrument covers 
  • Equipment housings 
  • Brackets 
  • CDs and DVDs

Get a Quote on Injection Molding Resin Today 

ICOMold can work with you on the design and production of your resin part. Get an instant quote today.  

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