Epoxy garage floor paint...on a truck?

Thats some cool stuff! I opened my old 2 part Epoxy paint and it was expired: Black mold on inside of lid and complete separation of solids from the liquid part, and the solid was the consistency of dried clay so I struck out on that one. Tried to stir it but it was like trying to reconstitute a brick. And all the black mold specs floating around? Nah, Ill just buy another kit. I'm kinda wondering if the 2 part epoxy paint will run on the side panels? I think the flat portions will set up just fine but am curious how the vertical parts will cure.