Next, apply your mist coat paint to your newly plastered wall. If you don't fancy watering down your paint you can also use Dulux Sealer for Plaster. All you need to do is get some white emulsion paint and thin it out with water – it’s that easy! Ten parts paint to one part water should work. Mist coat paint is simply watered-down emulsion paint, which acts as your primer. So, the next course of action is to create your own mist coat paint. Painting new plaster that’s completely dry can also leave you with uneven brush strokes. Top tip: If you don’t let the plaster dry and apply emulsion paint to wet plaster, it’s likely to crack and peel off. You can speed things up with a heater or by opening a window. As a rule of thumb, plaster takes up to 4 weeks to dry completely. There are different factors that influence how soon can you paint on new plaster, such as the type of material and weather. That’s why, allowing it to dry out will help you achieve a more even finish. How to paint new plaster? – 4 key steps to followįirst things first, let your plaster dry properly! Plaster is extremely permeable, which means it’ll soak up any moisture quick. The good news, you’ll find everything you need to know below. It requires more preparation – and patience! There are extra steps you need to take, including the application of a mist coat paint, before you can add a top coat of your chosen colour. It’s important to note that painting new plaster is different to painting an ordinary wall. It’s a decorating dilemma that many homeowners face when a room has been replastered or a new wall built in. If you’re wondering how to paint new plaster, you’re not alone. How and when should I apply mist coat paint? What’s the best paint for new plaster?Ī. I’m painting new plaster and want to achieve a professional finish. You allways use vinyl matt for a white wash initially.Q. Even if you were going for a silk, or eggshell emulsion for your finish coat. Even a basic B&Q cheap home brand white emulsion will be fine. Dont buy expensive emulsion for a white wash it will be a waist of money. A white wash/ mist coat is quite sufficient.Īnd tbh any vinyl matt emulsion really. So upto you if you want to use a plaster primer. Plaster primers I feel are just comercialised product. By the sounds of it the plaster has definitely been over worked/trowed/polished. Ive never had a problem with a 50/50 water / emuksion for mist coat in the 18 years of plastering. Make sure to let each coat dry properly before attempting to apply a following coat.įollowing on from my advice and the replies youve had. If prepped right you shouldnt get peeling. Just make sure everything gets a good mist coat. You still have two more coats to go on there. Paint the whole ceiling making sure to coat everything and not to go too mad on this coat. Mix a 50/50 ratio of water and emulsion (white wash). Dust down the surface with a brush to remove any excess dust. So my advice would be to sand the surface only with a quick rub to open the surface back up, with a p180 grade sand paper. Affectively only allowing the water innto the and stopping the paint from soaking in to the plaster.Ģ- The mist coat was too neat meaning what little water there was is absorbed leaving the vinyl element of the paint on the surface of the plaster instead of actually soaking into the plaster evenly. The reason paint usually peels away from plaster is for a couple of main reasonsġ- The plasterer who plastered the ceiling over polished the plaster closing the surface off. Just a simple mist coat followed by 2 coat neat coats of emulsion would do the job. I wouldn't bother with any commercial plaster sealer tbh. This is advice is given on the basis that you have mamaged to get back to bare plaster. What emulsion would you recommend as some say use a vinyl matt and some say a retail matt but most retail matt is wipeable. I've read people that have used a 50/50 ratio or 70/30 and have had problems with paint peeling or flaked. I've never painted skimmed walls before but since removing the mist coat I can see a few problems that might have caused the mist coat to crack and not adhere to the plaster.ġ, When doing the mist coat you could see stains in the plaster in places (Maybe pva mixed in plaster).Ģ, Plaster is so thin so maybe pva is reacting when mist coat soaked in.ģ, One wall looks shiny and after sanding with 120 grit the wall still feels very smooth and the pours of the plaster looks very closed. I'm removing a failed mist coat back to bare plaster and I want to buy a primer to seal the plaster as I've read so many people are having problems with paint peeling/cracking for whatever reason so I thought about buying a plaster sealer but which one should I buy so I can use dulux retail matt.
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