Painting interior sem? Dupont ? PPG

[Ed]

I have painted some 69 Camaro plastic pieces with a dye from auto body supply shop that was dupont. It was very thin so didnt fill the grain at all looked good.  I will need to do all the interior trim in this 70 Challenger.  Yes I do use adhesion promoter ect.  Was just looking for opinions on what people use and why.   The search button has me leaning toward sem Landau black.   

[BIGSHCLUNK]

I've used SEM w/o issue

[Chryco Psycho]

Same, I used SEM trim black went on great , looks good 
IIRC there is a softener that you can spray on first made by SEM that helps it to bond .

[anlauto]

SEM