Painting Mist Coat on to New and Old Plaster


Postby saljia » Wed Sep 27, 2017 6:40 pm

I know when painting newly skimmed walls that I have to do a mist coat first but... some of the walls/ceilings in my house were skimmed and left unpainted for approx 1 year so are dried out. Should I still do a mist coat or can I go straight to using undiluted matt emulsion? Have done a couple of walls with a mist coat but just wondering if I need to.
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Postby TommyPurdyPnD » Sat Sep 30, 2017 10:08 am

Absolutely do a mist coat-the drier the plaster the more it'll suck up the water in the paint-I'd use a contract emulsion (armstead etc cheap but not rubbish) 20-25% Dilute otherwise you'll get a flaky, badly adhered, really annoying surface to paint over. Honestly it's really really frustrating picking bits out of your roller.
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