Foster has built a global business on expert hot melt extrusion. Today, the ideal setting for Foster’s extraordinary hot melt extrusion is the new state-of-the-art Class 100,000 Cleanroom in Putnam, Connecticut.

Compounding within this world class cleanroom is performed by Foster’s team of expert technicians utilizing a high precision Leistritz ZSE-27mm twin screw extruder and ThermoFisher Polylab with a 16 mm twin screw extruder with precise cGMP design functions for medical and pharmaceutical applications.

Together, this dedicated team and dedicated extruder monitor every parameter in the extrusion process. Extremely accurate loss-in-weight feeding systems control the constant feed streams, maintaining the highest accuracy, while the compound is tracked through the extrusion line.

To confidently serve the growing demands of the today’s biomedical markets for world-class polymers, Foster has infused its extensive knowledge and experience into a vast array of materials solutions that meet the highest quality standards in the broadest range of applications. Many of these polymers require Foster to develop unique handling and processing technologies in order to fully optimize finished part performance. Base polymers used for Foster’s compounding enhancements include:

Specialty

• polyolefins - LDPE, HDPE, LLDPE, polypropylene, EVA
• styrenics - polystyrene, SAN, ABS, HIPS
• vinyls - PVC, PVC Blends

Highly-Engineered

• high temp - PEEK, PES, PPS, polysulfone, LCP
• fluoropolymers - PVDF, Tefzel®(ETFE, FEP), THV®

TPE’s

• non-engineering - SBC’s, EVA’s, TPO’s, metallocene
• engineering - TPU, PEBA, COPE

Bioabsorbable/Pharmaceutical

• PLA, PGA, PLGA, Polyox, cellulosics, PVA, PVP, Eudragit