My fireplace is made of tiles - stuck over a former which seems to be a mix of concrete and iron strengtheners.
The tiles were originally stuck by bedding in some type of cement product that is very tough and I cannot remove it without damaging a lot more of the fireplace. So I need to "glue" back the loose tiles.
The fireplace is not used much and will not need to withstand very much heat.

The glue needs to be very thin so the replaced tiles are not noticeably proud of the others - so probably not epoxy or contact adhesive, or tile adhesive.

So which glue to use ?
1. PVA - probably would work to some extent
2. PVA + SBR - a bit better than 2.
3. PVA and/or SBR + cement slurry
4. Gorilla glue - oozing edges might be a pain
5. Anything else ?

Simon.