Grrr - wallpaper border adhesive...
Previous owners of my house decided to put a border up in the hall/stairs/landing. When I moved in I redecorated in a similar colour so just left the border in place & painted up to it.
Now 12.5 years later I'm redecorating completely and have removed the border but it's left a film of rubbery adhesive (not normal wallpaper paste) stuck to the wall that will not easily shift. I need to get this off so I can just paint the wall.
Had a look on the net and have tried the following 'solvents' I had already in the house:
None of these seem to be doing anything great. The only one that works slightly is the fabric softener which does seem to loosen up the glue a bit, but I still have to scrape it off with a scraper (and in the process I'm catching the paint behind making a mess of the wall). It's taken me about half an hour of scraping and rubbing to do about half a metre - and I must have 20m more to do :-(
Anyone got any bright ideas, or am going to be spending hours trying to get this bl**dy stuff off.