Interior Paint

Mixing rattle cans at the paint store cannot have hardener in it or the paint won’t spray after a short time.

so this paint isn’t any better that any other rattler can.
I have had the local PPG store mix a factory color by their receipe for a couple of small repair spots and it came out 99% perfect. Just a little shinier. It was on lower qtr. Car was a 77 Volare wagon with original paint in a gold color..
But yes, I dounbt any hardner.