"Cicero" wrote in message
news
On Sun, 15 Apr 2007 15:31:08 +0100, Anode wrote:

When emulsion painting a ceiling with paint of the same colour as is
already on, I have great difficulty detecting the wet-edge of where I
have
just painted. And this makes it difficult to know where to apply the
paint
next.

Is there anything I can do to make the just-painted wet edge show up
better, so I do not end up with missed patches?

I was thinking that a difference between wet paint and dry paint is that
light is reflected better from wet paint. So I wondered if it would help
to get a bright, cold-running light, such as a 500W security light, and
point it at the ceiling from the floor. Has anyone tried this, and did it
help?

Anode.
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It's easier to use an undercoat of a different colour. Look
on the tin (or maker's instructions) for a suggested undercoat colour.


Smoking heavily for a while prior to painting may also help.