i need help with painting a 69 camaro guys,i sandblasted this car and then layed on ppg epoxy,did my body work and then sprayed ppg k36 surfacer,next came color or so i thought!! i picked a ppg toreador red metallic the code is FL 5096,but when i got home the can says NISSAN,SC5096,is it the same?? the store says it is,so i sprayed a quart,and guess what, something just wasnt rihgt about that color,so i called around to another ppg store,and he says the mistake was not using the ppg recomended tinted sealer,no one told me about that!!so now im sanding this off,how much should i sand ?? i already hit bare metal in small areas,please help me!!