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Structural Foam Molding Services | Lightweight Large Parts

Transform your large-scale manufacturing with EVOK's advanced structural foam molding services. Our specialized process delivers exceptional strength-to-weight ratios, making it ideal for producing oversized components that traditional injection molding can't handle. From automotive panels to industrial equipment housings, we engineer lightweight, durable parts with superior dimensional stability and reduced material costs—all while maintaining the precision and quality you demand.

Large structural foam molded component with cellular core structure

Our Structural Foam Molding Services

Comprehensive solutions for large-format plastic components, from initial design consultation to high-volume production of lightweight, structural parts.

Parts Design & Engineering

Expert structural foam part design optimized for strength, weight reduction, and moldability. Our engineers analyze wall thickness, rib placement, and cellular core structures to maximize performance while minimizing material usage and cycle time for large components.

Prototype Development

Rapid prototype services for structural foam parts to validate design, structural integrity, and surface finish before production tooling investment. We help you see and test your large-format components early in the development process.

Material Selection

Strategic material selection for structural foam applications, balancing density, strength, chemical resistance, and cost. Our expertise spans engineered resins specifically formulated for foam molding processes to achieve optimal cellular structures.

Mold Design & Manufacturing

Custom mold design and fabrication for structural foam molding, incorporating proper venting, gas injection systems, and cooling optimization. We build tooling solutions that deliver consistent cellular structure and minimal sink marks on large parts.

Production & Quality Control

High-volume structural foam molding production with rigorous process monitoring and inspection protocols. Our quality systems ensure dimensional accuracy, consistent density, and structural performance across every production run of your large-format components.

Analytical Testing

Comprehensive analytical testing including structural analysis, density measurements, and mold flow simulation. Our problem-solving approach uses advanced tools to optimize foam cell structure, minimize defects, and validate part performance.

Advanced Manufacturing

Engineered for Strength, Optimized for Weight

Structural foam molding represents the pinnacle of large-part manufacturing technology. Unlike standard injection molding, our process creates parts with a solid outer skin and a cellular foam core—delivering exceptional rigidity at a fraction of the weight. This makes it ideal for oversized components up to several feet in length that would be impossible or cost-prohibitive with conventional methods. With 25 years of injection molding expertise, EVOK combines proprietary techniques with deep material science knowledge to engineer structural foam parts that exceed performance expectations while reducing your total production costs.

Cross-section view of structural foam molded part showing cellular core
Proven Excellence

Trusted By Industry Leaders

Over 25 years, we've delivered structural foam solutions for major manufacturers across automotive, powersports, and industrial sectors.

"Amazing business and amazing person to work with.Paul and I grew up together he has always had attention to detail in everything he has ever done,my company has used him a couple times now and are so pleased with the outcome I would recommend the company to anyone, once again..."

Kevin Nattress
Kevin Nattress

"Great customer service! Paul is super dedicated."

Mo Amin
Mo Amin

"Had a Great to work with Paul and it has been great! Has a plethora of knowledge and was great to learn from."

Landen Pool
Landen Pool

"Great expertise and people!"

Rick Chen
Rick Chen

"driven with details ... Very impressive"

Lawrence Dathe
Lawrence Dathe

"Paul is very knowledgeable and passionate regarding all facets of plastics manufacturing."

Matt Maskell
Matt Maskell

"Evok provided exceptional service! Paul and the studio team demonstrated amazing expertise and professionalism throughout the process. They exceeded expectations with precision and timely execution. Highly recommend for any project requiring top-notch design solutions."

Jason Salveson
Jason Salveson

"Amazing business and amazing person to work with.Paul and I grew up together he has always had attention to detail in everything he has ever done,my company has used him a couple times now and are so pleased with the outcome I would recommend the company to anyone, once again..."

Kevin Nattress
Kevin Nattress

"Great customer service! Paul is super dedicated."

Mo Amin
Mo Amin

"Had a Great to work with Paul and it has been great! Has a plethora of knowledge and was great to learn from."

Landen Pool
Landen Pool

"Great expertise and people!"

Rick Chen
Rick Chen

"driven with details ... Very impressive"

Lawrence Dathe
Lawrence Dathe

"Paul is very knowledgeable and passionate regarding all facets of plastics manufacturing."

Matt Maskell
Matt Maskell

"Evok provided exceptional service! Paul and the studio team demonstrated amazing expertise and professionalism throughout the process. They exceeded expectations with precision and timely execution. Highly recommend for any project requiring top-notch design solutions."

Jason Salveson
Jason Salveson

"Amazing business and amazing person to work with.Paul and I grew up together he has always had attention to detail in everything he has ever done,my company has used him a couple times now and are so pleased with the outcome I would recommend the company to anyone, once again..."

Kevin Nattress
Kevin Nattress

"Great customer service! Paul is super dedicated."

Mo Amin
Mo Amin

"Had a Great to work with Paul and it has been great! Has a plethora of knowledge and was great to learn from."

Landen Pool
Landen Pool

"Great expertise and people!"

Rick Chen
Rick Chen

"driven with details ... Very impressive"

Lawrence Dathe
Lawrence Dathe

"Paul is very knowledgeable and passionate regarding all facets of plastics manufacturing."

Matt Maskell
Matt Maskell

"Evok provided exceptional service! Paul and the studio team demonstrated amazing expertise and professionalism throughout the process. They exceeded expectations with precision and timely execution. Highly recommend for any project requiring top-notch design solutions."

Jason Salveson
Jason Salveson
The EVOK Difference

Why Choose EVOK for Structural Foam Molding?

We combine decades of specialized expertise with innovative problem-solving to deliver large-format parts that meet your exact specifications.

25+ Years Expertise

Over two decades specializing in advanced injection molding technologies, including structural foam processes for complex, large-format components across diverse industries.

Engineering-First Approach

Our Six Sigma-certified team conducts thorough design reviews, mold flow analysis, and tolerance studies to optimize every structural foam part for manufacturability, performance, and cost efficiency from day one.

Complete Development Pipeline

From concept feasibility and rapid prototyping through production tooling and high-volume manufacturing—we guide your large-part project through every stage with transparent communication and collaborative problem-solving.

Transparent Pricing

We're upfront about costs at every stage, itemizing tooling, material, and production expenses so you can make informed decisions. Our goal is optimized part pricing without compromising quality or performance.

Meet The EVOK Team

Experienced engineers and designers passionate about solving complex molding challenges.

Paul Dathe, Founder of EVOK Polymers

Paul Dathe

Founder

Paul Dathe founded Evōk Polymers with a singular vision: to deliver the highest quality injection molded components at the lowest possible price through proprietary technology, deep industry expertise, and exceptional customer service. With over 25 years of experience in engineering, product design, and injection molding problem-solving, Paul brings unmatched expertise to every structural foam project. He holds four U.S. utility patents and is a Six Sigma black belt, applying rigorous process optimization to large-part manufacturing. Prior to founding EVOK, Paul led new product development at Caliber Products, where he grew sales 540% and expanded the customer base from 25 to 144 companies with 100% retention. His hands-on experience spans tooling design, mold flow analysis, tolerance studies, prototype fabrication, and qualification testing. Paul's technical background includes senior roles at Entegris (managing a $40 million product line) and design engineering positions at Rollerblade, General Mills, and Boston Scientific. He earned a Bachelor of Science in Mechanical Design from Bemidji State University with emphasis in rapid prototyping and 3D modeling, and remains active in the Institute of Packaging Professionals and Allied Executives Business Leadership Peer group.

Shawn Monitor, Sr. Industrial Designer at EVOK Polymers

Shawn Monitor

Sr. Industrial Designer

Shawn Monitor has been an essential creative force on some of the most technically advanced molding projects over the past two decades, with particular expertise in structural foam and large-format component design. He excels at communicating evolving design concepts through complex mechanical and visual prototypes in various materials, ensuring structural foam parts can be validated before expensive tooling commitments. Shawn creates photorealistic renderings using Otoy OctaneRender® and develops technical layouts and diagrams with Adobe Creative Cloud. His involvement in pre-molding design reviews has significantly reduced risk on large-scale projects by identifying potential issues with cellular core formation, surface finish, and structural integrity early in development. Shawn's ability to build prototypes that accurately represent final structural foam properties allows clients to make confident decisions about wall thickness, rib design, and overall part geometry. He holds several patents and has conducted research across diverse applications from consumer products to biotech and medical facilities. His technical curiosity and attention to detail make him invaluable for problem-solving challenges unique to structural foam molding, such as optimizing foam density gradients and minimizing sink marks on large surfaces.

Daniel D. Hoyt, Ph.D., Business Development Manager at EVOK Polymers

Daniel D. Hoyt, Ph.D.

Business Development Manager

Dr. Daniel Hoyt brings strategic vision and collaborative leadership to EVOK's structural foam molding initiatives. His expertise in system and process design, combined with his ability to cultivate strategic partnerships, enables manufacturers to reimagine what's possible with large-format plastic components. Daniel is passionate about building Lean Partnership-Based Organizations that empower businesses to compete through innovation. At EVOK, he leads initiatives that challenge traditional approaches to large-part manufacturing—from initial concept through production—by fostering continuous improvement and genuine partnership. His vision extends beyond simply delivering structural foam parts; he aims to create a community centered on mutual benefit, knowledge sharing, and sustainable growth. Daniel's proficiency as a facilitator, public speaker, and coach makes him an effective bridge between engineering teams and business stakeholders. He helps clients understand how structural foam molding technology can solve their specific challenges—whether reducing part weight for fuel efficiency, consolidating assemblies to cut costs, or achieving dimensions impossible with standard injection molding. Under Daniel's guidance, EVOK doesn't just manufacture parts; we establish long-term relationships built on trust, transparency, and shared success in transforming large-part design and production.

Frequently Asked Questions

What is structural foam injection molding?

Structural foam injection molding is an advanced manufacturing process that creates large plastic parts with a solid outer skin and a cellular foam core. A chemical blowing agent is mixed with molten plastic resin, which expands during injection to form millions of tiny gas bubbles throughout the part's interior. This creates a lightweight, rigid structure ideal for oversized components that would be impractical or too heavy with standard injection molding.

How strong is structural foam?

What is structural foam used for?

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Can foam be injection molded?

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What materials work best for structural foam molding?

Have Questions About Structural Foam for Your Project?

Our engineering team is ready to discuss how structural foam molding can solve your large-part manufacturing challenges.

Certified Excellence

Awards and Recognition

Six Sigma Black Belt Certification

Six Sigma Certified

Black belt process optimization expertise

Manufacturing Excellence Award Icon

25+ Years Manufacturing Excellence

Over two decades delivering quality molded components

Industry Association Membership Icon

Industry Leadership Recognition

Allied Executives & Institute of Packaging Professionals

Ready to Start Your Structural Foam Project?

Share your project details and our engineering team will contact you within 24 hours to discuss design requirements, material options, and cost estimates for your large-format components.

Contact Us Today

For immediate assistance, feel free to give us a direct call at +1 612-991-2001 You can also send us a quick email at