On 13/02/2020 17:16, The Natural Philosopher wrote:
On 13/02/2020 15:38, ss wrote:
On 13/02/2020 15:32, Dave Plowman (News) wrote:
very strong tiles will come off the wood intact -
but how about removing the mortar from them?

It may depend on the type of mortar used, when I moved a few things
around in my kitchen a few of the tiles I wanted to reuse I got off in
1 piece and then soaked overnight in a bucket of water and the
`mortar` scraped off easily enough.

if it's cement based soking in HClÂ* works eventually




Is that brick acid?

Be interesting to see what it does to tiles. HCl is stored in glass, and
the glaze on tiles is effectively glass, so that sounds promising. But
any defects in the glaze could let the acid attack the colour
underneath, and of course the baked clay is porous.