Earlier whist aboard the throne and gazing around the bathroom I noticed that the Indian slate is well pass another coat or two.
I’m going try to pop down the tile shop tomorrow but vaguely remember there might be ‘special stuff’ to clean the tiles up before putting the new stuff down?
If so is it worth using that, if such a thing exists, or anything else recommended?
Thanks.

Search stuff by HG.
They do all that shiz.

I use this it very good

link

I use stuff from these guys: http://www.tiledoctor.co.uk/
It may be similar to some things Topps sell, but they have a better sales pitch & a better range for different materials/finishes.

Lithofin, colour intensifier then sealer. ££££ though

Cheers guys.
I think I’ve still got some sealer left it was more the question of what to clean the slate with before I put some more sealer down.