Best mist paint for plaster if using johnstones vinyl matt as top coat?

[Earlgreybee]

We've had loads of work done and are going to have a ton of repainting to do on newly skimmed plaster... we want to match in johnstones trade paint covaplus vinyl matt on top as we already have a ton of it in the right colour... what's the best paint to use as a base for a mist coat?

Any tips also gratefully received!

I usually water down either crown or Dulux trade matt and use it as a mist coat

Make sure all the plaster work is fully dried , ,usually have a quick light sand to remove any snags and then brush it to remove any dust / powdered plaster ,

Same with me - just the bog standard dulux brilliant white emulsion watered down.

how long ago was the plaster done? What colour is it?

You may as well use the same brand of matt white emulsion. It's cheaper than colours. Apply one mist coat and one extra to even out the colour and texture (subject to it being fully dry, see my questions).

This is very helpful but @pigletjohn I thought you couldn't use a vinyl paint for watering/misting?

All the plaster is pale grey, all the finished paint is Little Greene French Grey Pale (virtually the same colour as the new plaster yay), the real paint in the sitting room and colour matched in the johnstones covaplus all over the rest of the house.

We've had a loft conversion so all three bedrooms in the first floor need at least one wall if not all redone, and all the halls, landings and new loft bedroom.

We're actually looking to finish the doing up and move on to another fixer upper so as soon as possible after the plaster's dried. One lot is a year old (ahem), some is a month old, some is about two weeks old and some has yet to be done.

Oh, and we're in a very damp part of Ireland, so that might affect drying time.

If the plaster is still wet, and drying out, you should use a non-vinyl paint such as Dulux Trade Supermatt, which will allow moisture to escape. And not paint over it with vinyl paint until it is fully dry.

If it is already fully dry, and pale matt pink with no dark or brown patches, you can use a vinyl paint.

if your plaster is grey rather than pink, that's just a different sort of sulphated limestone in the mix, maybe your quarries are different, but if it has dried and gone pale, that's OK.

This should be all right, shouldn't it?

www.screwfix.com/p/no-nonsense-trade-bare-plaster-paint-brilliant-white-10ltr/51004

yes, it seems to be a non-vinyl matt white, rather like a cheap version of Supermatt. It will not be very durable.

But you only need to use such a thing if you are painting plaster that is still drying out, and you can't put vinyl paint on top until it is fully dry.

If you think the plaster is dry enough to use a vinyl finish, you can use a vinyl mist.