- 9 leading manufacturers
- 153 additional suppliers
- 41 states and provinces
- 17 related categories
- 3 guide sections
Thermoplastic Molding Manufacturers and Companies
IQS Directory is a top industrial directory listing of leading industrial thermoplastic molding companies and suppliers. Access our comprehensive index to review and source thermoplastic molding companies with preview ads and detailed product descriptions. These thermoplastic molding companies can design, engineer and provide injection molding for your specifications and application need. A quick and easy to use request for quote form is provided for you to contact these thermoplastic molding companies and suppliers. Each company has detailed profile information, locations, phone number, website links, product videos and product information defined. We are the right resource for your information requirement whether its for a manufacturer of rapid injection molding, plastic injection molding, prototype injection molding.
Suppliers located in OH, CA, IL +38 more states
Contents (5 sections)
Leading Thermoplastic Molding Manufacturers
Showing all 9
Certification, declaration and ownership records are on file for 1 of 9 suppliers in this list, from supplier reports IQS reviewed. A supplier without one listed may still hold it.
| Placement No. | Manufacturer | Location | Contact | Actions | |
|---|---|---|---|---|---|
| 1 | LTM PlasticsLTM 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. | Denver, CO | |||
| 2 | Progressive Molding Technologies Inc.At Progressive Molding Technologies, we specialize in precision injection molded plastics engineered to meet demanding performance and quality standards. Our company works closely with customers to transform design concepts into durable, production-ready components used across a wide range of industries. | Medina, OH | |||
| 3 | Hi-Rel Plastics & MoldingHi-Rel Plastics is a U.S. custom plastic injection molding company specializing in precision injection molded parts for medical, aerospace, automotive, electronics, industrial, and consumer markets. We provide prototype through high-volume production, engineering-grade resins, insert molding, overmolding, tight-tolerance molding, tooling, assembly, and secondary operations with ISO-certified quality, competitive pricing, fast lead times, and reliable U.S. manufacturing.
Hi-Rel Plastics & Molding states: EU RoHS (Supplier-reported, reviewed Sep 2026), EU REACH (Supplier-reported, reviewed Sep 2026), Small Disadvantaged Business (Supplier-reported, reviewed Sep 2026), Minority-owned business (Supplier-reported, reviewed Sep 2026) | Riverside, CA | |||
| 4 | Quality Plastics, LLCAt Quality Plastics, LLC, we pride ourselves on being at the forefront of the injection molded plastics industry. Our expertise lies in crafting high-quality plastic components and products designed to meet the most demanding specifications and applications. We embrace a comprehensive approach to manufacturing, ensuring that each product we produce meets rigorous standards for precision and durability. | Fredericksburg, OH | |||
| 5 | TMF Plastic SolutionsAt TMF Plastic Solutions, precision and quality define our approach to injection molding. Advanced manufacturing capabilities and a deep understanding of material properties allow us to produce durable, high-performance plastic components for a variety of industries. | Plano, IL | |||
| 6 | PharoPLASTPharoPLAST is an engineering-led custom injection molder in Cleveland, Ohio that helps Midwest OEMs get new products to market faster and bring today’s production under tighter control. With faster lead times, lower startup costs, hands-on engineering support, and seamless communication, your plastic part supplier can finally become your plastic part partner. | Cleveland, OH | |||
| 7 | EXI-plast Custom Moulding Ltd.At EXI-plast Custom Moulding Ltd., we specialize in delivering high-quality injection molding solutions tailored to our client's diverse needs. With years of experience and advanced manufacturing capabilities, we excel in producing precision-molded components for various industries. Partner with us for reliable and customized injection molding solutions. | Centralia, ON | |||
| 8 | Zauderer Associates, Inc.At Zauderer Associates, Inc., we specialize in providing high-quality injection molding solutions tailored to meet the diverse requirements of our clients. Our team leverages extensive experience and advanced technology to produce precision-molded components that consistently exceed expectations. | Rockmart, GA | |||
| 9 | GSH Industries, Inc.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! | Strongsville, OH |
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Leading thermoplastic molding manufacturers are listed first on this page, each with a website preview and a Request a Quote button on its row.
Additional Thermoplastic Molding Companies
The category’s other thermoplastic molding companies are listed on their own page, with location, phone and website where each supplier provides them.
View 153 Additional Thermoplastic Molding CompaniesDo not see your company listed in Thermoplastic Molding?
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Thermoplastic Molding Industrial Manufacturing Guides
Thermoplastic Molding: Types, Materials and Processes
Information about thermoplastic molding and techniques with information about thermoplastic molding providers You will learn: The Principles of Thermoplastic…
5 chapters
Quick Answers
- How many thermoplastic molding manufacturers are listed on IQS Directory?
- 9 leading manufacturers and 153 additional suppliers.
- Where are thermoplastic molding manufacturers located?
- The listed suppliers are in 41 states and provinces: Ohio (19), California (16), Illinois (16), Michigan (12), Indiana (7), New York (7), Texas (7), Wisconsin (7), and 33 more.
- How do I get quotes from thermoplastic molding suppliers?
- Select suppliers in the table and choose Request Quotes. IQS reviews your request and forwards it to every supplier you select.
Thermoplastic Molding
Thermoplastics are recyclable polyester resins that are widely used all over the world for plastic products. Over the past 50 years, the use of plastic materials has significantly expanded; today, more than 100 million tons of these materials are used worldwide. Thermoplastics are the most significant class of plastics in terms of tonnage because they account for over 80% of all plastics used globally.
Thermoplastic molding is a technique that uses liquid thermoplastics to produce products of the desired shape and size. Thermoplastics are the ideal molding material because they instantly soften after heating and become hard when cooled.
What Is Thermoplastic Molding?
Thermoplastic molding is a manufacturing technique that injects plastic resin into a ready-made mold to produce completely functional items. In injection molding, thermoplastic polymers are utilized more frequently than thermosetting polymers. The fundamental cause of this is that thermoplastics are highly recyclable materials since they can be repeatedly softened by heating and hardened by chilling. Re-ground leftover components from a prior molding process cycle are inserted into an injection chamber with fresh pellets. This addition is restricted to 30% of the bulk material since it may cause the plastic‘s original physical characteristics to deteriorate.
Working Principle of Thermoplastic Molding
- The fundamental idea behind plastic injection is using heat to soften pellets of thermoplastic (TP) material.
- The material is worked into a pliable state and pumped into an endless screw. The material can be inserted into a mold by rotating this screw and applying pressure afterward.
- After being introduced, the material imprints on the mold and cools; once chilled, the object becomes solid and may be extracted from the mold.
- The removed mold can then be utilized again for an injection process.
This technique is ideal because it reproduces numerous high-quality, identical products because the mold can be used again when the proper material is utilized. A thermoplastic injection is especially well adapted to large or extremely large volume production.
Numerous sub-categories of thermoplastic molding exist, such as rapid injection molding, which is best used to perfect prototypes before a product is authorized for production. Production injection molding is a sub-category of thermoplastic injection molding that works best for whole product runs.