.....snip...."Once air cured, the liquid glass finish is as hard as glass and will never crack, chip, peel or turn yellow and never has to be removed. It can be used on all paints, all bright work and all glass and is safe to use."
......and if it doesn't work as advertised? It may be a bigger pain to remove.
You might try it somewhere out of sight.
I'll stick with wax and/or Polymer sealants.
"Sticks & stones can break your bones...and hail will dent your Airstream"
So when is this..."old enough to know better" supposed to kick in?