1991-02-01

High Temperature Performance of RRIM Polyurea Body Panels 910859

Reinforced Reaction Injection Molded (RRIM) polyurea body panel systems have been commercialized and are being used for front fender applications on production vehicles. While these panels are painted on-line, they currently bypass steel corrosion protection primer (E-coat) cure temperature environments ranging from 175°C to 200° C. High temperature stable polyurea RRIM systems have been developed and have been exposed to production plant environments including E-coat cure and on-line painting. The results have been favorable giving high painted surface quality and stable mechanical properties.This report expands the characterization of high modulus polyurea RRIM composites by documenting part dimensional change through high temperature exposure of the assembly process. Attachment methods to minimize dimensional change of polyurea RRIM body panels are also discussed.

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