Alpinemist Posted November 27, 2011 Share Posted November 27, 2011 Hi AllJust had a skim coat of plaster put on the walls. I have a spare water based 10L tub of Sous Couche Universelle, can I water this down and use it as the mist/seal coat or do I need to buy an emulsion? Link to comment Share on other sites More sharing options...
Gyn_Paul Posted December 1, 2011 Share Posted December 1, 2011 I have used exactly that prior to 2 finish coats. It seems to bung up the pores as well as anything. You certainly need something cheap (or in your case, free!) as new plaster has an astonishing thirst!p Link to comment Share on other sites More sharing options...
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