A number of leak stoppage grouting attempts had failed to overcome theproblem of water leakage caused by longitudinal shrinkage of the ShilinDam.Due to seam shrinkage:adhesion, deformation rate, durability, and the need to have an instant-setting property,so as to avoid washout, had to be considered.The company employed polyimide resin injection grouting andsuccessfully completed the leak stoppage in January 2000.
Since then, the leakage problem has not recurred.