I have a deep scratch in one of my doors on my Buick. I bought the touch up paint but I'm not exactly sure how to apply it. I have used touch up paint many other times with many cars and it always seemed to come out crappy (even when i wet sanded and took my time). Can anyone help me with this with the steps and/or details? I found a few other sites online but each seems to have different steps and some are using spray paint. I'm going to use the small brush or roller ball touch up paint. Another question, what grit sandpaper should i use? Is 1000 grit OK?

If you are using a mere touch up kit ..i would recommend for about 15-30 cents buying a model paint brush the bristles are much smaller than what comes in the bottle and no you wont need to sand it at all after application it will look very dull but put it on and allow it to simply apply to the scratch only ....unless you know someone in the paint dept...and ask for a bit of clear to mix into the paint it will look dull upon finish

if you are good at airbrush i would suggest merely filling the scratch in just as i described earlier ...unless you are going to actually paint the entire area then your talking blending into either the adjacent areas or merely blending into the area around the scratch ...what ever way you look at it touch up paint will always look dull upon finish