If you leave the final coat to long you will have to scuff the surface so the paint can stick.I think it's 24 hours after that the new paint won't have enough to grab hold of.Yes after that it will appear to work but around the year old mark could very well start peeling off.
Yes vccomm there are a lot of products that we use today were originally designed for space exploration.Like body filler (bog) was deigned as a lightweight body filler for use on the space shuttle,now widely used in the panel beating industry.Other things like microwaves first patient on October 8, 1945,but we didn't start to see them until the mid 80's.So yes lots of things were created long before the general public knows about it.
And that's all for today's history lesson.
