Metal Prep recomendation/confirmation
My Little 2-door has been media blasted and has been sitting for a long time in a dry garage. I have a couple little rust holes that I will be repairing but my question is on first coating. Local auto paint shop recomended an epoxy-primer PPG DP (xx)LF where xx is color, with DP401LF catylyst. I plan to use high build primer after to "block" and smooth. What is the technical purpose of this DPLF and how "anal" should be about making the metal "surgical" clean before aplying. Is is fairly forgiving on this as it is a sealer type coating?
Light coat?/multiple coats?
I have a new HVLP Devilbis "knock-of" and am a first timer that is just trying to be carefull.