I have a floating engineered (oak veneer) floor in my condo that is too thin to be sanded. I would like to (1) use a product (an acid like phosphoric acid perhaps?) that can be diluted and spread on the floor to 'etch' the protective finish to a matte, and then (2) apply some type of tinted glaze or sealant in a matte or satin finish, to make the floor look darker and re-seal it.

The two objectives are to get the semigloss finish down to a matte or roughed up level so it will both be less shiny (shows flaws now) and take another product on top, and to shade the floor a bit darker (it's traditional oak - dated).

Can anyone suggest some products to try for this? How do I tell if the floor is Aluminum Oxide or Acrylic sealed, and does that make a difference to the type of acid (or other dulling product) and tinted sealer to put on top?

I'm willing to 'wing it' and take a chance to improve the look of the floor as my only other option is full replacement so I have nothing to lose.