Light sanding & for any filler used to hide trowel marks etc; although there shouldn’t be many or indeed any if the spread was any good. What you should not do is use heavy sanding to clean up a botched job, this will expose the plaster grain under the surface & it’ll look like suede brushed the wrong way when you paint it requiring more coats to cover it up.Can I give certain areas of the new plaster a light sand with fine sandpaper to remove imperfections?
How quick should the mist coats go on after each other?
Don’t wait between the mist coats.apply 2/3 coats in quick succession, leave overnight & then apply your chosen finish.
I only ever use cheap own brand matt white for mist coats.B&Q have got small tubs of their cheap and nasty matt emulsion for ceilings going half price, could I use that for the mist and my Crown matt for the topcoat?
One of the ceilings has a patch repair and the plasterer has overlapped a fair bit on to the old plaster (over the join). The edges are quite rough and will need a scrape and sand to try and blend it in with the old plaster....would that be the correct process?
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