Bathroom Tile Coving

[Prudie]

Can anyone help suggest what product I should get for this problem - in bathroom 2 vertical walls are plain emulsion and meet horizontal tiled shelves. Where walls meet tiled area water has collected over time and the paint is back to bare plaster. I need some kind of coving that will sit flat against both to repel water but my untrained eye can't find anything. is there such a product and what would you stick it with?

[The Builder]

Do you mean tile quadrant Pruders?

http://www.wallsandfloors.co.uk/range/wall-tiles/bathtrims-quadrant-sets/

[Prudie]

Hey the Buider, I was hoping you might come along! That looks like what I need - it doesn't have a lip to put behind the tile does it? I want to just stick something on without disturbing the tiles (which are just finished with grout at the moment?)

[The Builder]

No, some trims do have an upstand. You stick it on first, then fix tiles above.
These are ceramic quadrant tiles. You simply apply them over what's there.