PPDI is a specialty isocyanate developed by DuPont to achieve superior dynamic properties in demanding applications. It can be extended with polyethers, polyesters and polycaprolactone to achieve unparalleled performance in wheels and rollers. It's low hysteric energy makes PPDI isocyanates ideally suited for applications like high speed roller coaster wheels.

• Superior dynamic properties
• Exceptional abrasion resistance and flex fatigue
• Low compression set at elevated temperatures
• High temperature performance to 135C (275F) in continuous use
• High resistance to wear
• Low permanent deformation
• High rebound resilience
• High tear resistance