The bond strength and wood failure values of resins made with different additions of cornstarch 5:95, 7:93, 10:90 and 13:87 (cornstarch–UF, weight ratios) was tested and compared with that of a control UF resin (0:100) at 1958C and 4 min press time.The results of the effect of corn-starch substitution level on the bond strength are shown in Table 1. With the increase of cornstarch substitution level, the bond strength and wood failure appeared to be rela-tively unaffected by the presence of cornstarch up to 10%(10:90) and then decreased.