Waterborne basecoat is gaining popularity in the automative industry. However, the viscosity of some waterborne basecoats may be unstable while circulating in the paint supply-and-storage system. This instability has caused significant problems in the paintability of the basecoats and the quality of the final finish. An original application of forecasting control is implemented to control the viscosity of certain waterborne basecoat. Both manual and automatic implementations of forecasting control result in significant improvement of process capability.

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