Rosti Utah
Shortlisting Plastic manufacturing partners in Utah?
Rosti Utah has been one of the premier plastic injection moulders in the Western United States for over 40 years. Located in Clearfield, Utah, the 62,000 square foot facility utilizes more than 30 cells ranging from 55 to 500 ton, serving markets including medical, sporting goods, home fashions, consumer goods, industrial and electronics.

Dennis McGuigan
Sales Manager
Rosti Utah | (Formerly Smi Molding, Inc.) | Freeport Center, Bldg. Z-13 | Clearfield, Ut 84016

Our services
Rosti Utah combines decades of manufacturing and engineering experience to deliver repeatable, high-quality products built to customer specifications.
Manufacturing Expertise
Decades of hands-on manufacturing and engineering experience ensure consistent, repeatable production.
Advanced Moulding Capabilities
Specialized in hard-to-mould products, including elastomers, thick-walled plastic parts (gas assist), insert moulding, and engineered plastics.
Automation & Precision
Automation is integrated to improve precision, repeatability, and production efficiency.
Quality Assurance
A strong quality culture is embedded across all systems and procedures to ensure reliable performance.

Facts & Figures
62,000ft² Facility
75+ Employees
Established 1981
Certifications
Take a look at our industry specific certifications from approved bodies, to ensure we provide you with guaranteed service.
International Standard for Quality Management (2015 – latest version)
Our Capabilities
Rosti North Carolina supports customers with design-for-manufacturing expertise, advanced injection moulding, and value-added services that improve efficiency, reduce cost, and speed up go-to-market.

Injection Moulding
Rosti Utah manages a wide range of injection moulding projects, delivering consistent quality regardless of part complexity. The site’s expertise ensures reliable processing and stable production outcomes for demanding applications.

Rapid Prototyping
Cost‑effective rapid prototyping provides physical samples within two to three weeks, enabling your engineering team to validate designs quickly and accelerate development.

Reshoring & Tooling Transfer
We offer fast, reliable transfer and start‑up of existing overseas tooling. Most tools require only minor modifications before running in production, supporting smooth reshoring and reduced supply‑chain risk.

Elastomer Processing
The team has deep expertise in elastomer moulding, including TPEs, urethanes, TPVs and flexible PVC, ensuring precise processing of flexible and high‑performance materials.

Job Postings
We are pleased to announce the below available positions. Rosti is seeking talented people to join our dynamic team. If you or someone you know is interested please apply below.
