Sprayed mine with NATO green lookalike from Blanchards, near York. Can't remember what I thinned it with but I think I used celly thinners. Blanchards said thin it with anything you've got! Covered really well and no runs. When it gets really dirty, wash the vehicle, wait for it to properly dry and then spray WD40 over it and rub with clean cloth to dry. Brings it back to that just sprayed finish.