What's wrong with the Krylon sprays? What makes auto paints + a touchup gun better?

 

They simply don't have the adhesion and durability properties ofautobody finishes. That is mostly due to the materials (premixed in an aerosol can) and the means of apllication. You wouldn't do a frame or unibody shell restoration andprime/paint itwith cans of Krylon. Basically if you spray that on yourstang you are adding a finish vastly inferior to what is already on the car. Now why would you want to do bother doing that?