the objective of the present feasibility study was to explore whether or not the reinforcement of polyurethane and polyepoxide resins with carbon or polyaramide fibers (kevlar) could be accomplished by means of reaction-injection-molding (rim) technology although the results of the present study were not capable to answer this question unequivocably, it is believed that considerable further research would yield an economically acceptable solution which could be of great benefit to a variety of industry segments, including the transportation industry. in particular, the authors believe that further research should be conducted to define suitable rim mold filling techniques for mold cavities containing non-woven and woven carbon and kevlar fibers. in a second phase of this project, extensive research is required to define alternate methods of fiber surface treatment to assure rapid wetting out of the fiber surface additional programs must deal in depth with research in mold design, possible use of vacuum filling techniques, fiber distribution in the mold cavity, and many other related variables. in short, a number of correlated research investigations will be required to assure commercial success of this type of rim technology