Dulux, instead of delux, is a product of Dupont, I have sprayed many gallons of it...but its a myth to say it was heated on a hot plate, unless it was a painter new to the business...
Lacquer cracks only when a painter sprays coat after coat, trapping solvents that eventually will find its way out, then say lacquer will crack in a couple years...another reason for crow footing is after getting multiple coats of clear on, again trapping solvents,still wondering why it doesn't hold up.. Clear has NO strength whatsoever..Take a small amount of color (providing its lacquer) allows the color to cross-link, adding strength, as long as You allow the coats to flash before adding another coat not to exceed (3) coats...When I painted for GM on cars that were in the auto shows, Lacquer was what We used 100% of the cars...Certain colors oxidize before others, maroon is one of them, take a buffing wheel and bring the color back to its original luster...On the other hand, with enamel You must remember the last coat is the sheen coat, if You put a buffer to it, the color will die in 6 months,or less...