(231) 267-5221 5780 Moore Road, Williamsburg, MI   49690
Functional Plastics - Grand Traverse
100% Ontime

Quality Systems

Zero Defect Culture

Quality Systems

IATF:16949:2016 Certified

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GTP’s commitment to customer service is supported by our sophisticated Quality Management System which mandates a strict compliance with outlined policies and procedures. There are many steps that go into making a high-quality plastic injection molded product or part, many of which happen before production even begins. The quality planning process is one of these crucial steps and it involves rigorous analysis to ensure the best possible design, materials and production processes are being used for our customers application. We practice rigorous Advanced Product Quality Planning (APQP) and complete Production Part Approval Process (PPAP), both which are key to manufacturing “consistent high quality” components. This includes early customer engagement as a key to success. Our Quality Engineers work with customers to establish tolerances, develop validation testing and work in concert with our manufacturing group and suppliers to identify product improvement opportunities. Having a team of experienced quality engineers to plan and oversee this phase is critical for efficient optimized production and at GTP we also involve and draw upon the experience of our engineering, manufacturing, program management and purchasing experts for their input.

As a result, our quality systems and plastic injection molding processes provide consistent and exceptional results which are evident by our zero PPM record and exceptional KPIs

Quality Awards

GTP’s internal quality systems and plastic injection molding processes provide consistent and exceptional results. Paired with GTP’s unmatched commitment to quality, zero defect culture, on-time delivery, and customer support is all a hallmark of our operating philosophy. As a result, one of GTP’s customers, GM, has recognized GTP for its efforts and continued commitment to their success by awarding the company with the coveted “GM Supplier of the Year” award four times with two years running back-to-back. GTP has also been awarded numerous Quality Excellence Awards, Platinum Performance and Gold Performance awards from GM.

In-Process Inspection

GTP utilizes the latest technology in automated in-process inspection using optical inspection methods which allow us to quickly and accurately measure and statistically evaluate critical dimensions during the manufacturing process. We have invested significantly in vision systems, laser scanners, barcode scanning and other quality control tools to mitigate the potential to ship improper parts. Furthering the use of automation and the latest technology allows GTP to automate the in-process inspection system, removing the human interface and removing any variation in the measurement system.

Grand Traverse Plastics

Provider of engineered plastic solutions for both production and prototype applications. We offer extensive engineering and component design, material expertise and sourcing.


1734 Crooks Road
  Troy, MI 48084


5780 Moore Road
  Williamsburg, MI   49690