Thermoset Molding Services

Southwest Plastics provides thermoset molding services for industrial and commercial customers nationwide. As a leading plastics manufacturer in the US, we use our high-precision thermoset molding capabilities to manufacture custom thermoset plastic components that meet our customers' specific dimensions and material requirements. From low to high-volume part manufacturing, Southwest Plastics can produce the custom components your application requires.

Materials for Thermoset Molding

At Southwest Plastics, we use a range of high-performance thermoset materials, each with unique performance characteristics. Materials we use in our high-precision thermoset molding process include:

Epoxies: Excellent mechanical strength, chemical resistance, and electrical insulating properties
Phenolics: Excellent flame and chemical resistance
Diallyl phthalate: Dimensional stability and high-temperature performance
Polyesters: Cost-effective, fast curing, and good strength for various applications
And more.

Differences Between Thermoset Injection Molding & Thermoplastic Injection Molding

While both thermoset and thermoplastic materials are used to manufacture plastic components, there are substantial differences between the two types of materials. Unlike thermoplastics, which soften when heated and then return to solid again when cooled, thermosets undergo a permanent chemical change during the molding process. Thermosets typically begin in a granual, powder, resin compound, or preformed state and are then transformed into an unchanging solid state after being heated through injection molding.

Because thermoset plastics do not melt upon reheating, they provide durable and stable performance in extreme conditions. This makes them ideal for industrial applications requiring high heat resistance and structural integrity.

Common Industrial Applications for Thermoset Molded Components

Construction materials for doors, windows, plumbing, HVAC, and more
Circuit breakers, insulators, switchgear, and other electronic components
Components in aerospace applications
Corrosion-resistant components in harsh industrial environments
Appliance manufacturing
Marine applications
Aerospace applications
Military & Defense

Why Choose Southwest Plastics for Your Custom Thermoset Plastic Parts?

At Southwest Plastics, we have decades of experience in thermoset molding. Our engineers are qualified to take on even the most complex projects for a wide range of industrial applications. With state-of-the-art injection, compression, and transfer molding machines, you can rely on superior quality and repeatability for your components. If your custom thermoset parts require further refining, we offer a full range of additional capabilities.

Contact Us for High-Precision Thermoset Molding Services

Contact us today or request a quote online to learn how Southwest Plastics can be your thermoset molding supplier. We'll work closely with you to understand your specific requirements and deliver custom thermoset plastic parts that exceed your expectations. Our engineers will work with you to optimize your products application, ensuring you get the best results for your requirements. For all your high-precision thermoset molding needs, choose Southwest Plastics.