Dave Liquorice wrote:
On Tue, 15 Jun 2010 17:05:19 +0100, stuart noble wrote:

I took mine off a rendered surface with paint stripper
snip
Piece of cake if the wall is flat. Forget it otherwise.

Mixture of pebble dash, render but with a coarse sand surface and
random stone. Definately not flat and SWMBO'd would object to nasty
chemicals getting anywhere near the borders...

Mmm. try a pressure washer straight then.

Of possibly industrial grade

It will certainly rip loose flakes off, and general crud.

You make need to get close in with a domestic sort. Will take a long time.

If the surface is that rough anyway, you really don't care about a
smooth finish: just removing the flaky is all you want.