I did one as bad. Painting customers 67 Cuda. Had ready to paint. Mixed PPG DP40, catalized, and reduced as sealer before painting. Let "kick" for 30 minutes while I ate lunch. After lunch reduced it and started to shoot the car. I had painted one whole side before I realized it was running like Niagra Falls. Try to get that mess back off a car you had ready to paint. Never a good idea to reduce it twice.