Plastering & Rendering

How do I fix a very ugly and uneven corner between two walls?

Anonymous user 15/03/2024 - 2.47 PM

hello taking old wallpaper off has left me with an awful inner-corner between two walls. i assume i am now seeing lots of various old attempts at repair. gouges, ridges, bumps. this is probably why previous occupiers opted for wallpaper. pics here: https://imgur.com/a/2TeZn6I (for scale each pic is about 20cm high). (it is white because i painted with ronseal damp seal before attempting to deal with the corner). what i've tried with caulk hasn't helped and now i'm at a loose end (i was thinking to hide the ugliness with repeated layers of caulk, but i realised i would end up with a 'curve' between the two walls rather than a straight corner). i have briefly tried to sand into the corner with a coarse sanding sponge but didn't seem to get anywhere. would a heavier-duty sander somehow focused into the corner help? i don't need a totally perfect finish. i just want it to be 'good enough'. thanks in advance