QPI processes and specializes in many engineering-grade materials.  These include Acetal, ABS, Polycarbonate, PET, PBT, PPO, PPS, Nylon, Flexible PVC, and various Elastomers.  In each size range we have presses fitted with special screws and barrels for molding glass and mineral filled materials. Our largest resin suppliers are Dupont, GE, and Bayer. We also process the commodity type resins such as polyethylene, polypropylene, and polystyrene.

The use of so many different materials has helped us develop relationships with a number of different material suppliers. We are often able to use these relationships to help source materials at very competitive prices and generate savings for our customers. 

The experience and technical expertise we have developed in order to successfully mold all of these different resins has often enabled us to help our new customers solve problems with existing parts and tooling.