Does anyone have any experience of removing or skimming over
polyripple-covered walls? We had the stuff all over our hall/stairs/
landing walls and have managed to remove a fair amount of it from one
wall (the largest area alongside the stairs thankfully) by scraping
off with a sharp scraper, much of it fell off in largish chunks. All
other wall surfaces are proving more tricky though.

We have already tried the following:

1) scraping - more like hacking off tiny shards of it, didn't seem an
efficient method

2) steaming with wallpaper steamer - this melted it slightly and made
it into a chewing gum texture which proved almost impossible to
actually scrape away - just sort of rolled about on the wall re-
sticking itself, none actually came off

3) heat gun (paint stripping gun) - similar to the above only with
added fumes

4) bought some EcoTex to try to dissolve it off - left for over an
hour then tried scraping. The top layers of paint came off but once
down to the actual polyripple it again started behaving like chewing
gum and took ages just to scrap away a tiny portion. At over £20 for a
pot that might get ride of a few m2 this is going to be an expensive
option anyway.

I've asked 2 plasterers if they would skim it and both said they'd
have to cover it in pva then skim but the polyripple might lift away
from the wall and destroy the plaster on top.

Any ideas? Does sanding work? or can you skim over the top of it using
another method?

Thanks.