quarry tile finish

Varnish for a bathroom floor ? I'd use LTP or Lithofin if they have something you think suitable.

Yes, not to make the floor shiny but as a product that would soak in and seal and toughen the top surface of the terracotta.

Yes. For a bathroom Lithofin will prevent too much water soaking in. Any normal cement additive will render grout waterproof but I have never found it necessary.

In the end the problem is simple enough. Something that soaks into the pores and doesn't evaporate and isn't water soluble.

From Linseed oil upwards.

Are you sure that this material is the right choice for a bathroom floor where you are likely to be with bare feet. If getting on in years, as most people on this group seem to be, and uneven floor plus water is more of a fall risk.

Boiled linseed oil rather than raw linseed oil ?

Is that because you like the look of them? It sounds very poncey and impractical for a bathroom. Surely any coating would detract from that look?

Old quarry tiles usually acquired some kind of coating over the years/centuries; often red paint.

IME the Lithofin products like grout protector, stainstop or splashstop are impregnators and don't change the appearance. (they have other additional treatments you can apply that do - but you don't have to use those.

A slippery tile floor is more of a risk

It's my bathroom Dave. Poncey is absolutely a style choice round here. Next week I am tieing twigs in bunches with ribbon and spraying them with silver and gold paint to hang from the ceiling

Tim W

Yes I didn't like the sound of that any more than I wanted a penetrating product. Why do they use these words?

Tim W

If your bathroom happens to be on a ley line, it makes perfect sense to use porous tiles. Ignore the scoffers.

LOL!

Go for it. Bollocks to the style police.