The results showed that it is possible to add cornstarch and mimosa tannin, respectively, up to
10 and 4% to the UF resin without to alter the physical and mechanical properties of the
boards. The performance of these panels is comparable to those of boards made using
commercial UF resin. Petrochemical UF resins could be partially substituted in industrial
applications by addition of cornstarch and mimosa tannin extracts.