Reaction Injection Molding Manufacturers and Companies

IQS Directory provides a comprehensive list of reaction injection molding companies and suppliers. Use our website to review and source top reaction injection molding companies with roll over ads and detailed product descriptions. Find reaction injection molding companies that can design, engineer, and provide reaction injection molding to your companies specifications. Then contact the reaction injection molding companies through our quick and easy request for quote form. Website links, company profile, locations, phone, product videos and product information is provided for each company. Access customer reviews and keep up to date with product new articles. Whether you are looking for manufacturers of gas-assist injection molding, rapid injection molding, rim molding, or customized reaction injection molding of every type, this is the resource for you.

  • Denver, CO

    LTM Plastics is Denver's premium injection molder, serving up quality since 1977. At LTM, you can expect consistent results, transparency and meaningful collaboration. We talk with our customers to determine their needs and then build our processes to deliver the highest quality parts quickly. We have experience but we’re not beholden to the “old ways” of doing things. It’s all about finding the right solution for the situation. Call today and see if we're the right partner for your next project.

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  • Fenton, MO

    As one of the Midwest’s oldest plastic molders, Koller-Craft has craftsmanship built into its name. We take pride in our quality injection molding work. Large to small parts, short to long runs. Excelling at product design, prototyping, close tolerance molding, insert molding & secondary services.

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  • Pomona, CA

    Performance Engineered Products, Inc. is a dynamic and innovative company, and we pride ourselves on being at the forefront of the injection molded plastics industry. With a rich history dating back to 1981, we have consistently demonstrated our commitment to excellence in both products and services.

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  • Stuart, FL

    We are more than just a reaction injection molding company. We believe that we are your ambassadors and dedicated servants in everything we do. We always put the customer first, and we continue to pass our knowledge and experience on to benefit the customer. Find out more about our services and benefits when you visit our website or call today!

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  • Riverside, CA

    Hi-Rel Plastics & Molding, Inc. offers injection molding for a variety of industries. We can process an almost infinite variety of thermoplastic resins, our prices are competitive, our delivery is on time, and we provide superior customer service. Value-added services include label application, assembly services, and custom packaging and shipping. Our team has the knowledge and expertise to develop the perfect solution. We areISO 9001:2015, AS 9100 Rev D, 13485:2016 Certified.

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  • Tempe, AZ

    A leader in the plastic processing industry for over 70 years, Aptyx provides a range of manufacturing services including injection, blow and dip molding, extrusion, and assembly. Within injection molding we are deeply experienced in complex processes such as over molding, two-shot molding and insert molding. With a focus on delivering high-quality product and exceptional customer service, you can count on us. Reach out for a competitive quote today.

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  • Valencia, CA

    Valencia Plastics is your leading full-service injection molded plastics manufacturer. Our products are made with various materials, including urethane, polyurethane, nylon, acrylic, and polycarbonate. We offer a wide range of sizes from miniature items up to 7 lbs. large parts. We are ISO 9001:2015 compliant. Industries we serve include electrical, military, automotive, aerospace, and agricultural.

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  • Bristol, PA

    Abtec, Inc. is a manufacturer of injection molded thermoplastics for high-tech OEMs. Since 1981, we have provided quality injection molded plastics and engineering services to such industries as automotive, aerospace, dental, electronics, food handling, nuclear, reprographics and more. Our 21,000 square feet building operates 24-hours a day, 5 days a week. Contact us today!

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  • Strongsville, OH

    You won’t find better quality injection molded plastics anywhere else in the industry. We have built ourselves up from a small manufacturing company to a large company with decades of experience. We can provide effective, efficient, and affordable solutions that will help you meet your goals and get the job done right. Contact us to learn more today!

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Reaction Injection Molding Industry Information

Reaction Injection Molding

Reaction injection molding (RIM) is a plastic molding process commonly used for larger (parts up to 8' x 8'), geometrically-complex parts, rigid foam parts and parts that have lower annual production runs (100-20,000). One of the main differences between reaction injection molding and standard injection molding is the use of thermoset polymers, such as polyurethane, instead of thermoplastics.

The addition of a curing phase in the molding process makes reaction injection molding distinct from standard injection molding. The low viscosity of the material caused by the exothermic reaction of the two raw materials (isocyanate and polyol) and low injection pressures in the RIM process ensures long material travel paths, which is helpful in the production of large parts; elimination of built-in stresses, which is due to the reaction versus the pressure of injection; and exceptional durability of the finished part.

Quick Links to Reaction Injection Molding Information

Advantages to Reaction Injection Molding

These types of parts are sturdy, durable and resistant to aging and weathering, and so the reaction molding process is often used to produce molded plastic parts such as radar antennae, telephone system shields and automobile bumpers that are required to withstand impact and abuse. Reaction injection molding is an economical option for manufacturing these parts due to low labor costs, minimal material waste, use of low cost aluminum tooling and various material options.

Advantages of RIM versus other low volume production methods are cost savings, part repeatability and consistency, weight savings, design freedom and overall part quality. Huge cost, weight and quality advantages can be reaped from RIM for operations that already use FRP (Fiberglass layup) as a production method. Due to the control over wall thickness and dimensional/assembly features it allows, RIM will produce a better fit and finished assembly every time compared to other processes. RIM also makes it possible to have very large draws as well as various wall sections without sink or distortion. RIM engineers can design for both the aesthetic side of the part (side A) and the working side of the part (side B) and apply many more DFMA principles.

The Method of Reaction Injection Molding

The process of reaction injection molding is named after the chemical reaction that takes place within the plastic in the injection, curing and cooling phases. Two liquid components - a polyol and an isocyanate component – are impinged upon each other at a mixhead and then injected (mostly by gravity) into a heated aluminum mold. These liquids chemically react - hence the term "reaction" injection molding - and then harden into the shape of the mold cavity. A foaming action occurs between the two components as a result of this chemical reaction and forms a cell structure that then fills out the mold cavity. The chemistries of the polyol and isocyanate coupled with the mix ratios determine the physical properties of the final foam material and the type of polyurethane part manufactured.

The foam structure could be soft and flexible like a seat cushion, or it could be made to react and form with little foaming action to make a hard (solid), thin-walled foam to mimic the physical properties of an injection molded-type plastic such as a computer housing. The chemistries could be altered to allow for impact resistance as well as flexibility. The versatility of RIM is another advantage to the process; there is no limit to the variety of products that can be manufactured by RIM. Reaction injection molds are cost-effective and allow for greater design flexibility, but they have a lower production rate than standard injection molding due to the cure time involved, the size of the parts and the slower cycle times involved in the process.

Application for Reaction Injection Molding

Reaction Injection Molding is used in a host of industrial applications such as:

  • Medical Enclosures
  • Automotive Interior/Exterior Parts
  • Telecommunications Structures
  • Laboratory and Analytical Housings
  • Heavy Equipment
  • Agriculture
  • Vehicle Covers
  • Various Consumer Goods
  • Panels/Covers for Electronics
  • Laboratory and Analytical/Scientific Equipment
  • Enclosures for Medical Devices
  • Housings for Computers
  • Telecommunications Equipment
  • ATM Housings
  • Automotive Components for the Transportation Industry
  • And More

More Reaction Injection Molding Information

Reaction Injection Molding Informational Video


Which Injection Mold Type Is Best for You?

The best way to educate our customers is to ask what they need then show them their options. A plastic injection mold is an investment in your business and your product. You want the best quality for the lowest price, and since ICOMold® offers different mold types, which is the best for your plastic parts and your budget? • When ICOMold runs your Production Injection Mold* in our facility, we guarantee the mold for the lifetime of your program. This saves you money should your mold need repair or replacing. ... Read More About This