As a child of the 70's I remember that stuff very well. I always wondered what it was. It was before Armor All and STP Son of a gun, if you remember that one. It was very shiny and completely dry to the touch. I always thought it was a clear laquer, but an sure it wasn't. I even asked some of the lot guys what it was but didn't get any conclusive reply. It did make the engine compartments look very nice.
Now I know I `m not crazy LOL I never could find out what it was. They used something similar on the vinyl interior door panels and seats.to make it shiny too and it would come off if cleaned with a strong cleaner. That looked like it was sprayed also...
