has anyone fitted these? They are like mini worktops but attach to make a small 90 deg. splashback. So the worktop has an angle at the back. When fitting is it just a case of gripfilling to wall and then silicon seal the corner? Advice appreciated.
Yes, just a decent size bead about 15mm inside the edges. After re- reading your post, I realised you are using the small one, so no sockets to cut around.
You could put a bead along the bottom or one on the front of the joint after it has dried to the wall.