 
With over 150 years of collective manufacturing experience, our team delivers effective problem solving for our customers. We’re trained to analyze difficult application challenges and provide robust solutions that will result in continuous improvement in quality and productivity.
We work alongside customers’ engineers to effect design-for-manufacturability solutions to lower costs. GSP follows rigorous industry standards including Validation Protocols such as APQP and IQ OQ PQ, PFMEA, Control Plans, Flow Charts, PPAP, MSA, 8D and 5Y.
For specific questions regarding our engineering team, please contact:
 Dennis Wiley
603-669-6715x113
We get it. It isn't only about price. We've been in your position as a business owner, buying agents, engineers and quality managers. For that reason we approach a relationship differently than most competitors. As a result, Granite State Plastics has distinguished itself by becoming an award-winning manufacturing partner with an impressive client base of industry leaders including Automotive, Medical, Appliance, Industrial, Military and Consumer Goods industries.
It begins with understanding the customer's priorities, needs and pain points. We assemble our team early on to arrive at the best possible solution for tooling and manufacturing. Part of this is equation is in matching domestic and international tooling sources to the customer's needs for quality, price and delivery. The end result is in delivering quality products on a timely basis.
To learn more, contact our Business Development Manager:
Robby Robinson
603-669-6715x108
We work with a variety of engineerin grade resins and high temperature materials including: ABS, Acetal, Acrylic, Nylon, Polycarbonate, PBT, PPO, PPS and PSU. We also handle most of the commodity resins such as PE, PP, and PS.
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