These undulations your on about what exactly do you mean? i.e are they
ripples? if so this is because the blade has scraped the wall rather than
sliced across, whenever you hear a scrape or experiance a judder in the
blade immediatly smooth out that area again.
Do not take particular attention to discrepencies at the early stages of
applying the plaster as these can be rectified when it comes to polishing
the plaster, your main objective is to cover the whole area in as little
time as possible without the need to rush like a demented demon.


I have a newly plaster room - skimmed plasterboard - but after the
first mist coat of emulsion I have noticed some very obvious ripples
and lines in certain areas. What do you mean by "polishing the
plaster"? Is this a way of getting rid of these imperfections?

I am currently trying to sand back the affected areas and was thinking
of slapping some filler into these areas then sanding back again.
Otherwise, the only option I can think of is to re-skim everything -
which obviously I (or the builder for that matter) don't want to do.

In addition to these ripples, there are a couple of areas that were
patched due to late changes in design. Again, there are visible areas
where the patch has taken place. I assume trying to blend this lines in
would need a similar techniquie to smoothing the ripples.

Any suggestions for this - without lining the wall with lining paper.

Chris