[PCC]

Until you drop something on the tiles and they crack.

If you've got heaps of money then go with any of the above options.

If its a case that you just don't want dust then simply seal it.

There's plenty of proprietary products on the market with a wide range of colours.

Simply degrease the existing surface (wash it), acid etch it (diluted acid) and then wash again. Once dry seal it.