Thank you. But isn’t that exactly an epoxy again, which you advise against? I also didn’t really see anything about water glass in the description. I had also found the following regarding epoxy: Remmers 2k primer. It also says that it is breathable.
Following your descriptions, I had also found the following:
weber.floor 4720 - 25kg - alkali silicate
Rontec-Basis 10 liter deep silification potassium water glass + lithium water glass
But that only hardens the floor and doesn’t really smooth or color anything, right?