Painting, decorating and home improvement tips blog

How to paint new plasterwork

Posted by Adrian
April 7th, 2012

Painting new plaster

When you have had either walls or ceilings plastered or skimmed over with plaster you need to know how to paint them correctly to get a long lasting finish.

Firstly ensure they are dry, this will depend on what plastering you have had done. One thing not to do, start painting colour samples on bare plaster, due to the brushes that come with the samples and how thick you apply the sample you will see this on your walls forever unless you rub them down, best to paint on some lining paper or plain white paper, you can then move it around the room and see the colour in different lights. There is a previous post about this Colour samples and testers.

To Paint new plasterwork

Firstly get some sandpaper, not too course, as you don’t want to ruin the new plaster, around 120 grit and lightly rub over the plaster to remove any splashed plaster or drips of dirty water. Then brush the area down to remove any loose dust.

Next, you may well think it’s simply a case of deciding on a colour and painting over the new plaster? STOP!
You should never paint new plaster with a vinyl emulsion as this will sit on top of the plaster leaving a skin or layer that could peel off. You should always paint new plaster with a ‘New Plaster Sealer’ or a non-vinyl emulsion.

I use a non-vinyl emulsion and is my preferred method. I use a matt emulsion, typically white to seal the plasterwork before using a vinyl emulsion colour over the top to complete the job. The ‘New Plaster Sealer’ or a non-vinyl emulsion will soak into the new plasterwork and the finish coats you apply will adhere to this first ‘mist’ coat.

You don’t have to worry about covering the plaster totally, you just need to give it a ‘mist’ coat (as it’s known) to seal the plaster, you’re not looking for complete coverage and opacity.

Once you have mist coated your new plaster you can now apply your choice of finish coat and colour.

Paint Calculator

You may find my paint calculator useful to help work out the quantity of paint you require to mist coat your new plaster and also for your final finish coat. One thing to note, new plaster can be absorbent so slightly more paint maybe required than normal to get a good depth of colour and a good finish.

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Posted in Decorating Tips | 3 Comments »


3 Responses to “How to paint new plasterwork”

  1. vicky Says:

    I have a newly plastered ceiling and was advised to pain it with pvu glue (watered down), is this a good tip/idea?

    Date posted : August 14th, 2014 at 10:02 pm
  2. Adrian Says:

    @Vicky

    You can used a diluted mix of PVA and water but I always use a non-vinyl white emulsion, that way you are sealing the plaster and covering the plaster colour, ideal for white ceilings :)

    Date posted : August 15th, 2014 at 1:54 pm
  3. j spence Says:

    Very informative and useful information covering many decorating issues.
    Thanks for putting it all together and making it publically available.

    Date posted : November 4th, 2014 at 9:18 am

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