I'm not a paint expert but I believe you can clear matte paint. The issue comes with buffing. You can't do it too often or you actually buff the matte portion out of the paint and it becomes shiny.Although I'm not a paint expert, I would not suggest painting your truck Matte Black unless its going to be an on-road only truck. This is because with matte black paint you cant just buff out scratches, meaning that if you get trail rash, you will have to repaint the entire truck. Although I'm not sure why this is, I would guess its because the Matte colors don't have any clear coat and it makes it really hard to blend new paint without redoing the whole thing. I could be completely wrong though. I would also suggest the Line-x as an alternative to the matte black paint.