Custom Plastic Thermoforming and
Blow Molding Services Since 1965

STM Plastics products are made in the United States of America
STM Plastics has been trusted for 60 years
STM Plastics is a trusted family owned business
STM Plastics recycles excess and unused material
STM Plastics is a family owned business trusted for 60 years

STM Plastics

Family owned and operated since 1965, STM Plastics provides custom plastic thermoforming and blow molding services for any industry.

Located in the Heartland with a global reach, we offer both OEM manufacturing services and wholesale proprietary products for construction, lawn & garden, children’s products, pet supplies, cemetery and mausoleum, waste management, industrial, and many more industries.

We provide heavy and thin-gauge thermoforming on molds up to 8 feet, bottles for everything from ink to BBQ sauce, and CNC trimming for a perfectly finished product ready to use.

We love helping our customers grow, so let us shape your next project!

Custom Thermoforming and Blow Molding Capabilities

Thermoforming

Plastic thermoforming is a manufacturing process used to create plastic parts and products. The process involves heating a plastic sheet until it becomes pliable, and then forming it into a desired shape using a mold, or tool.  We offer custom thermoforming services for any industry, low to high volume, with great quality.

Blow Molding

Blow molding is a manufacturing process for forming hollow plastic parts. In general, there are three main types of blow molding: extrusion blow molding, injection blow molding, and injection stretch blow molding.  We offer custom blow molding services for your new project, or stock bottles already suited to fit your needs.

What Our Customers Are Saying

“I have worked with Nate Hughes and team on some of the garden products they have. I must say I am impressed with their professionalism, promptness and adaptability. I highly recommend STM.”

Joel Whitworth

“Great product great service! Brian and STM are doing a great job!”

Moe Bruenger