Cornerstone Management Solutions is one of the top search firms in the nation specializing exclusively in the Plastic and Polymer industry. WE HIRE Polymer Scientist Polymer Chemist Polymer Engineer Material Scientist & Manager Product Development & Manager Process Engineer & Manager Quality Engineer & Manager Mechanical Engineer & Manager Electrical Engineer & Manager R&D Manager Plant Manager Engineering Manager Sales/Sales Manager Process Expertise VP's CEO's and Presidents SPECIALTIES Plastic Injection Blow Compression Rotational RIM Insert Thermoplastic Thermoset Extrusion Blow Stretch Foam Gas-Assist Decoupled RJG Epoxy Resins Nylon Polycarbonate Polyethylene Polyester PMMA Polyurethane Polystyrene PVC SBS Rubber Silicone PTFE Polymers Polypropylene Polyvinyl Acetal Polyacrylates Polyacrylonitrile PAN Polyamide PA Nylon. Polyamide-imide PAI Polyaryletherketone PAEK Ketone Polybutadiene PBD Polybutylene PB Polycarbonate PC PEEK Polyetherimide PEI Polyethersulfone PES Polyethylenechlorinates Polyimide Polyphenylene Sulfide PPS Polystyrene PS Polymer. Polysulfone PSU. Polyurethane PU Polyvinylchloride PVC Polymer Polyvinylidene