here ya go
GLISTEN PC is a High Gloss, Rock Hard, Water-clear topcoat designed for spray or brush application over all metal surfaces, including highly polished aluminum and chrome surfaces. GLISTEN PC will not leave brushmarks and will dry in less than one hour, but will take 3-4 days to reach maximum hardness.
When GLISTEN PC is first dry to the touch it will appear to be very soft. Try to avoid touching it for several days until it becomes hard and tough,as to accidental contact could damage the surface before full cure has taken place. Like many other coatings, GLISTEN PC is a MOISTURE-CURED coating, which means it is strengthened by exposure to moisture; It will never crack, chip, peel, or yellow, and is very flexible as well.
Note: When applying over polished metals (aluminum, chrome, brass, copper etc) you must use AP120 metal prep according to instructions.
IDEAL USES: As a protective coating on aluminum wheels, chrome bumpers, marine railings, chrome or aluminum covers, grills, handles, ornaments, lights, etc
I have never used it myself but have seen the results on polished aluminum, I wasn't all that enthused about it. Nontheless there it is. Eastwood has a product called Diamond Clear which is specificallya coating for raw metal. Check'em both out, hope this helps.