This stuff has sketchy bonding properties, if you simple touch the surface its removed. So it would come off after a wash, or maybe even driving in the rain would take it off. Plus the no-UV protection would kill it for paint application purposes.
More promising would be for some chemist to analyze the molecular properties and try to find a modification of it that bonds to a sealant or coating that has UV protection.
More promising would be for some chemist to analyze the molecular properties and try to find a modification of it that bonds to a sealant or coating that has UV protection.