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Long Fiber Injection
Long fiber injection is a manufacturing process used to create reinforced polyurethane parts. It's benefits include a high stiffness-to-weight ratio which results in lighter weight parts without sacrificing part strength.

Typically, a robot is used to spray isocyanate and polyol into a mold where these polymers react to form a structural part. This differs from Structural Reaction Injection Molding by eliminating the second step of the process into a single step.