Jeff,
From what I can gather, the Reload is made of a water base plus special modified Silica - the same compound found in glass. It seems more like a spray version of CQuartz. It appears to have a thicker consistency and more durability, and can also be used on rubber. They also claim that it will help to remove water spots.
I have never used it, so whatever I am saying is just from what I have read. It does look like a great product though.