On Sat, 07 Nov 2009 09:31:59 +0000, Tim W wrote:

Steve
wibbled on Saturday 07 November 2009 09:12

I had a couple of these hairline cracks appear after I skimmed over the
rough artex in the lounge.

They re-appeared after filling.

Is the ceiling flat?

Fairly.

As my ceiling was flat (after skimming), I bit the bullet and papered
with 1000 gauge lining paper. Quite a bit of work but no cracks after 2
1/2 years.

That's why I was wondering about a drop of PVA to bind the edges
together and reduce future movement. The cracks are *extremely* fine -
only just feel them with a fingernail.

The paint will cover them no probs, but if the cracks move again, it may
appear through the paint, which would be a shame...

I think that the cracks will come back quite quickly.

I tried wiping diluted filler into the cracks after painting them with
PVA. That failed. I then gouged the cracks and filled again. That failed
too. They look OK after painting but give it a while and the cracks will
be back :-(

SteveE