This is an actual image of an artwork I did 15 years ago.

At that time I used a product prior to the one displayed in the link.
https://www.auro.de/de/produkte/holzfussboden/oele/126-hartoel/
I seales the surface perfectly.
The brand is still the same.
I didnt mind that it was develloped for wood.
You can always polish it up again with a soft brush.
U.