On Mon, 16 Feb 2009 15:18:33 -0800 (PST),
wrote:


freecycle wrote:

I've just noticed that my lounge wall has a grid of hairline
cracks in the plaster. I don't just want to paint over them
and they re-appear in a year or two, but do I use fine
polyfiller on them or does anyone have a better method
to get a better result or same some time?
FC
Had a similar problem with year-on-year movement in some hallway
plaster (1850 house).
As experiment, injected a couple of gallons of diluted PVA at a number
of points at cornice level. Sorted it!.
It's now a sort of plaster/brick/plastic composite and I've an
'orrible feeling that the whole wall may now be 'stressing up prior to
exploding .
I'll make do with fine surface filler next time around.

I too have a 19 century house with dodgy plaster in stairs and hall. I
too drilled holes at various points and injected pva and polyfilla
solution. That was over a year ago and so far it has held up well. The
only problem I have is when putting wall plugs in. The plaster still
seems a little crumbly. I find drilling the hole and filling with
decoraters caulk then pushing the plug in and leaving 24 hours to set
seems to work. It really needs a complete replaster but I'm too
knackered to do that sort of job now and too skint to hire it done.