No one seems to have paid any notice to my last post 
Most gloss enhancers are not low grade waxes - contrary to the marketing spiel above. If a product has wax in it, it will almost always be marketed as a wash and wax. As addition to that, a wax containing product will (should) give modified water behaviour. A gloss enhancer which does not do this, is not a wax, rather a surfactant, as I detailed previously.
Filling agents - beats the life out of me what they are talking about. In liquid products there is one ubiquitous filling agent - water. I will bet my life that G-wash, like every other equivalent product, has a healthy water 'filling agent' content!
Another note for you is that waxes in emulsion (which is really the only way you can do a wax in a wash type product, unless the wax is water soluble) tend to be of a certain particle size. It is actually quite common for this characteristic to be used to give a dull matte finish, a result of the large particles reflecting light in a non-uniform way. This is the opposite theory to why sealants look so wet and reflective, the sealant adhere evenly to a smooth surface and gives a very uniform reflection.

Most gloss enhancers are not low grade waxes - contrary to the marketing spiel above. If a product has wax in it, it will almost always be marketed as a wash and wax. As addition to that, a wax containing product will (should) give modified water behaviour. A gloss enhancer which does not do this, is not a wax, rather a surfactant, as I detailed previously.
Filling agents - beats the life out of me what they are talking about. In liquid products there is one ubiquitous filling agent - water. I will bet my life that G-wash, like every other equivalent product, has a healthy water 'filling agent' content!
Another note for you is that waxes in emulsion (which is really the only way you can do a wax in a wash type product, unless the wax is water soluble) tend to be of a certain particle size. It is actually quite common for this characteristic to be used to give a dull matte finish, a result of the large particles reflecting light in a non-uniform way. This is the opposite theory to why sealants look so wet and reflective, the sealant adhere evenly to a smooth surface and gives a very uniform reflection.