1. On a wall I have put about 4 coats of Dulux matt white emulsion on a previously dark coloured emulsioned wall. The finish I am getting is an aged crackled appearance (lots of small mostly vertical lines) which shows the darker colour through.
How do I get rid of this? Is there a sealer(?) or something similar I can put on so I get a smooth finish?
2. I have another dark wall in the same room I want to cover with white emulsion - is there something I should do first to the dark colour to prevent this happening again?

Penster, July 2008

I have put some wallpaper up yesterday and it seems to have a lot of bubbles in it what causes this

Gina, August 2008

Make sure you leave enough time between coats as well. I made a similar mistake in my hall. I was covering a dark colour with magnolia and rushed the coats, it went all crackled and looked like that distressed finished you sometimes get on furniture!

Marie, July 2008

Try using something called gluttenglas or a good stain stopper.
u can get these from most decorating shops and just ask them (dont use b&q or any other diy shops coz they just look at you blank)
hope it helps

mike.

mike., July 2008