Leading Plastic Molding Companies

It is the most common manufacturing technique employed in the making of objects we use each day, ranging from automotive dashboards to bottle caps and children’s toys. Plastic has become a popular alternative to metals, wood and glass as its wide range of properties are able to suit many different applications. Read More…

Plastic Molding Plastic molding is the process of using molten plastic or polymer resin to create molded plastic products for a variety of commercial and industrial uses.

For 50 years, LTM Plastics has been a leading manufacturer of injection molded plastics. When working with LTM Plastics, our customers can be assured that they are getting high quality products at a competitive price. We pride ourselves on our team’s communication and collaboration with our customers to meet their needs.

LTM Plastics $$$

If you are in need of injection molded plastic parts that are of consistent quality, look no further than MSI Mold! We have over 30 years of experience in design, production, and tooling of custom plastic parts.

MSI Mold $$$

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.

Performance Engineered Products, Inc. $$$

We may have started small, but today, we offer our products and services to companies around the world. We are dedicated to our customers, and our goal is to offer better service and pricing to any customer no matter the size.

Britech Industries $$$

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...

Hi-Rel Plastics & Molding $$$

Call Molded Devices for a fast, competitive quote on plastic molding, plastic injection molding, and medical injection molding services. A wide range of standard & proprietary caps, covers & containers plus custom components for all your needs. We are your one-stop for design consult, quick prototyping, custom formulations & secondary operations!

Molded Devices, Inc. $$$

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...

Valencia Plastics $$$

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!

Abtec, 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.

GSH Industries, Inc. $$$
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placeholder image LTM Plastics MSI Mold Performance Engineered Products, Inc. Britech Industries Hi-Rel Plastics & Molding Molded Devices, Inc. Valencia Plastics Abtec, Inc. GSH Industries, Inc.

Plastic polymers, in the form of thermoplastics, thermosets and elastomers, are a popular manufacturing material because of plastic's durability and malleability. The process of plastic molding is used for mass production and prototyping because of its ability to yield high runs at close tolerances.

Plastic molding typically involves a pre-made mold and liquid plastics; however other manufacturing methods include vacuum forming, injection molding, blow molding and compression molding. The type of molding process chosen usually depends on the final intended use of the product being made, and the process is commonly used in the consumer, food service, medical, plumbing, computer and automotive industries.

Materials used in plastic molding differ in important ways: thermoplastics can be melted and molded into a wide variety of shapes as they become more pliable with the application of heat. Shapes can be remolded and adjusted if need be, however, thermoplastics tend to be more brittle in cold or freezing temperatures. Thermosets, such as melamine resin or polyimides, dry hard and brittle and can only be melted and molded once. They are however more suited to applications that require exposure to cold.

Elastomers, for example, those known as rubber, maintain a property of elasticity once cooled which is a required characteristic for some molded plastic products. Elastomers are used in the molding of children's toys, or other objects such as tool handles which benefit from the comfort of elasticity. There are numerous advantages to plastic molding, including: fast turnaround times, lower labor costs and the ability to make complex plastic products and minimal waste.

Other materials such as metal or wood are hard to mold, especially into small and complex shapes, and without having the ability to melt and harden, can result in heavy wastage costs. Plastic however, can be bent, twisted, squeezed or turned into an almost limitless range of shapes. The negligible amounts of waste produced can be recycled through the melt and mold process, making plastic molding a responsible manufacturing choice.

Plastic Molding Informational Video

 

Injection Molded Plastics Power Pages

Overmolding

Overmolded Products

Many of the products used daily are made possible by producers and suppliers of rubber and plastic. These substances are robust, adaptable, and capable of practically any shape required for various industrial purposes...

Plastic Gears

Plastic Gears

A plastic gear is a toothed wheel made up of engineering plastic materials that work with others to alter the relation between the speed of an engine and the speed of the driven parts. The engineering plastic materials used in manufacturing plastic gears can be...

Plastic Injection Molding

Plastic Injection Molding

Plastic injection molding, or commonly referred to as injection molding, is a manufacturing process used in the mass fabrication of plastic parts. It involves an injection of molten plastic material into the mold where it cools and...

Plastic Overmolding

What is Overmolding

Plastic overmolding is a manufacturing process that involves combining two or more plastic materials to create a single, unified part. The process enhances the functionality, durability, and aesthetics of plastic components by...

Thermoplastic Molding

Thermoplastic Molding

Thermoplastic molding is a manufacturing process that works to create fully functional parts by injecting plastic resin into a pre-made mold. Thermoplastic polymers are more widely used than thermosetting...

Blow Molding

Blow Molding Animation

Blow molding is a type of plastic forming process for creating hollow plastic products made from thermoplastic materials. The process involves heating and inflating a plastic tube known as a parison or preform. The parison...

Polyurethane Molding

Polyurethane Molding

Polyurethane molding is the process of fabricating or manufacturing plastic parts by introducing a urethane polymer system into a tool or mold and allowing it to cure. Like any other type of plastic, the excellent processability...

Rotational Molding

Rotational Molding

Rotational molding, commonly referred to as "rotomolding", is a plastic casting technique used to produce hollow, seamless, and double-walled parts. It uses a hollow mold tool wherein the thermoplastic powdered resin is heated while being rotated and cooled to solidify...

Urethane Casting

Urethane Casting

Urethane casting is the process of injecting polyurethane and additive resins into a soft mold usually made of silicone elastomer. The casting process is similar to injection molding; injection molding differs by using hard, metal molds...

Plastic Molding Processes

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