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GPI, GT Plastics, Sierra, GPM


Two out of every three automotive seats produced in North America utilize our plastic profile extrusions. With over 7,000 profiles under our belt, we take the headache out of designing from scratch.


We offer a wide range of plastic extrusions specifically designed for seating applications. Though you may have never seen them, chances are you’re literally leaning on them every day; our seating extrusions are in nearly 70% of vehicles on the road today!

Trim Retainers

Our trim retainers primarily serve as clip-and-lock systems to securely fasten seat covers onto the seat frame and define the trim line. These versatile extrusions can be punched, lasered and printed in-line, as well bonded to non-woven fleece.



The J-retainer stands as the timeless seating retainer. With its fish hook shape, this profile easily locks into position and can clip directly onto metal wire. It’s an ideal profile for bonding with non-woven fleece.


Arrow Retainers

Our arrow retainers come in a variety of variations and can be tailored to match your unique seat trim channel requirements. They offer flexibility without compromising on strength and performance.



Our stiffeners, also known as flat strips, are engineered to enhance the structural integrity of seating components while emphasizing seating contours. They ensure longevity and stability in seating applications.


Beaded Duon / Tie-Downs

Our beaded duon extrusions are widely used as tie-downs to fasten seat covers to the foam-wire frame, creating beautiful contours while reducing sewing operations and accelerating assembly times for our customers.


Our plastic seating extrusions offer numerous advantages that set our products apart:

Decrease warranty claims

Our extrusions are designed to enhance the overall quality and durability of seating components, reducing the likelihood of warranty claims and associated costs.

Lower cost than zippers

Compared to traditional zipper systems, plastic extrusions offer a more cost-effective solution without compromising on functionality or performance.

Cut to length

Our extrusions can be easily customized to meet your specific requirements, ensuring a perfect fit for your seating applications.

Ease of installation

With user-friendly designs and precise engineering, our extrusions simplify the installation process, reducing the risk of error and accelerating assembly time for our customers.

High production rates

Our plastic extrusion processes enable high-speed production, ensuring efficient and timely delivery to our customers.

Low-cost tooling

We understand the importance of cost-efficiency. That’s why we offer low-cost tooling options, allowing you to achieve your desired seating solutions without breaking the bank.

Short tooling lead times

We build nearly all prototype and production tooling in-house, resulting in shorter lead times and ensuring quick turnaround for your projects.

Material flexibility

Our expertise in PP, LDPE, ABS, and over 50 specialty resins gives you the flexibility to choose the best option for your seating applications.


While our plastic seating extrusions offer several advantages, it’s important to consider a few limitations:

Surface standards

Depending on the material used, the surface area of our extrusions may not meet class-A surface standards. However, our team is dedicated to delivering high-quality finishes that meet industry standards.


Compared to injection molding, plastic extrusions may have slightly larger tolerances. Our engineers work diligently to minimize these variances and ensure precise fit and function.

Third dimensions

In certain cases, achieving complex three-dimensional shapes may require additional secondary operations. Our team is equipped to handle these requirements efficiently and effectively.


We’re committed to providing exceptional plastic extrusions for seating applications. Our dedication to quality, innovation, and customer satisfaction sets us apart in the industry.


Wherever You’re Located, We’re Here to Help

18 strategic locations in North America to meet the needs of our diverse customer base.


Is your extrusion design optimized to meet the constraints of the extrusion process? This free guide offers a solid foundation in the requirements for successful extrusion design. Created by engineers for engineers, and based on decades of extrusion development and manufacturing experience.

Get to know us. Get in touch today.

We have the resources to meet any part or production challenge. Let’s talk about what that means for you.

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