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Reaction Injection Molding Vs. Plastic Injection Molding: What’s the Difference?

injection molded enclosure

Injection molding processes are typically used when a business requires large quantities of plastic parts. But it’s not always easy to know what kind of injection molding process will work best for your needs. Often, the type of injection molded enclosure you want as your final result, as well as your budget, can allow you to make the correct determination. If you’re currently trying to decide between two popular types of injection molding — namely, plastic injection molding (PIM) and reaction injection molding (RIM) — this post may help you to gain a better understanding of the differences between these two methods. With that knowledge, you’ll be in a better position to decide which technique will more accurately serve your business’s needs.

 

Main Differences Between Reaction Injection Molding and Plastic Injection Molding

    • Materials Used: Although both techniques do involve the application of heat to a plastic component, each one utilizes slightly different substances to achieve the desired effect. Plastic reaction molding requires the use of some type of resin. Often, this resin is in pellet form. This resin is melted down and dispensed into molds using pressure. Once that heated resin cools, it sets into its final form. Reaction injection molding materials, however, are actually two different base polymers that are combined. When these thermoset materials come together, they undergo a chemical reaction that will force the combined polymers into the molds. Once those two materials come together, the mold containing the polymers are heated. In this case, it’s the heating that causes the materials to set, rather than the cooling we see in PIM applications.

 

    • Design Flexibility: In general, plastic injection molding requires more rigidity throughout the process. In other words, the injection molded enclosures produced from this technique must be less variable. Wall thicknesses must be relatively uniform and designs must be uncomplicated. Although recommended wall thickness for RIM molded parts for solid materials is typically 1/8 inch, wall thickness can retain its quality at 1/2 inch, as well. What’s more, the wall thickness throughout reaction injection molded enclosures can change without disrupting the quality of accuracy of the final product. RIM can also create parts that are both lightweight and durable, which can often be a challenge when using PIM techniques. Finally, decoration methods can be performed during the molding process itself with reaction injection molding; with plastic injection molding and other techniques, decoration must often be performed afterwards, adding delays, costs, and frustrations for many businesses.

 

  • Costs: Many businesses find that the cost differences between RIM and PIM are fairly significant, as well. Because RIM doesn’t require the application of extremely high temperatures, the materials required for reaction injection molds can be softer (and therefore of lower cost). Because tooling costs are lower, that may even mean that businesses will be able to have low-volume production runs and make prototyping a more realistic goal. In general, RIM is a less intensive process that requires less labor and lower machining costs. In PIM, equipment and machines must be made to withstand more extreme conditions, which drives costs up. Subsequently, RIM may be the most cost-effective option that can easily work into a business’s budgetary constraints during production.

In many cases, businesses will find that reaction injection molded enclosures can provide the durability, flexibility, and affordability they require — especially when compared to other popular options.

Jul 08 2019

Turning from Traditional Lumber and Wood to Staple Products for Increased Strength in Your Home

There are many staple products for construction and other projects, often with a long list that can be found before you ever begin. Whether you are looking to update your landscaping, a room inside your home, or take on another project, it is helpful to have all of the staple products before you even consider starting the work.

What is a Staple Product?

Staple products refer to the items needed to complete any project, primarily construction, remodeling, or landscaping. When these products are combined as instructed, you are able to complete a project of any sort. All of these projects have different properties, sometimes being more a portion of the actual working order of your home, where others are more for its appearance.

Different Types of Staple Products

With there being so many different types of staple products are needed for the different projects that help to update your home, planning the project from the very beginning is essential. Many of these (more…)

May 03 2019

Customized Stickers and Labels for Business and Shipping, Including Printable Circle Labels

Stickers and labels are printed for product information or pricing information. They are often customized for the need of the brand or the package being shipped. Customized stickers and labels are often printed for the benefit of the brand as well, and they can provide a great increase in brand recognition.

Customized Stickers and Labels

Printable circle labels are some of the most necessary customized labels needed for different businesses. These labels are needed within different parts of businesses to provide information on products, pricing, and marketing. Different factory-produced items are placed in standard packaging, making the need for printable labels even more. Even more than printable circle labels include other stickers that are printed such as the following:

  • Color coding stickers
  • Colored adhesive dots
  • Colored circle labels
  • Colored circle stickers
  • Colored dot stickers
  • Colored price stickers
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Apr 30 2019

Safety First Different Products For Gas Monitoring And Safety

In the United States, many Americans work in offices, confined spaces, and buildings with cubicles stacked in a neat pattern. Many Americans work in industries where they need to enter buildings to complete work, such as construction. It seems simple, natural, required. All Americans must work. And, they complete their work each and every day. Additionally, once their work is finished, they head home. Their homes, like their offices, buildings, and confined spaces are another space they occupy. However, there is something hidden in each of these spaces. Natural gas. In fact, around 5.4 million businesses are powered by natural gas, and natural gas can also be found in 66.7 million homes across the United States. This is because using natural gas is energy efficient by 92%. This is all well and good, but if you’re handling spaces, or occupying spaces with natural gas, there are some safety precautions you should utilize. Additionally, there are different products you should consider.
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Apr 30 2019

Why Carriers Turn to Freight Factoring Companies

Across the United States, manufacturing centers and farms are hard at work producing American goods ranging from wheat and dairy all the way to cars, furniture, and kids’ toys. But it is not enough for these goods to be built or grown; a full logistical network is needed for the safe and timely storage and transportation of these goods. This involves a client shipper working with carrier companies for transport, renting warehouse space, and even making use of geospatial data analysis to track the movement and location of cargo trucks across the United States today. A shipper hires a carrier, and a carrier will take on a full load of goods to transport somewhere on a schedule. Other parties may be involved, too; a freight broker can arrange a meeting between shippers and carriers, and freight factoring companies such as Advance Business Capital and others of its kind help smooth out the finances. Why get an invoice advance loan from Advance Business Capital, for example? Can invoice fun (more…)

Apr 27 2019