Help wet plaster and paint!

[ItsLeviooosar]

So we had a fire put in and the wall skimmed. It looked dry so we mist coated it and in places the mist coat isn't really doing anything it's like the wall is absorbing it all immediately.

Do we stop and sand it off and just wait longer for it to dry? Or is it fine?

Anyone?

I thought that was the point of a mist coat. You generally put on a couple of coats with a different ratio of paint to water each time until the plaster is sealed.

So we keep going until it's gone?

Was the plaster really pale when you started the mist coat, if so then it was probably dry.
The mist coat does get absorbed just carry on with it and it should be fine!
I did our walls last year and once the actual paint was on it took really well and looked great

disappearing is good, you want it to soak in and seal the absorbent pores of the plaster. Apply another thinned mist coat. You will know when you have killed the suction, because the wall will no longer suck the moisture out of the brush. At that point you can start rollering on undiluted paint.

Or, for economy, apply one or two coats of matt white, which is cheaper, and will level the colour and absorbency of the wall so you need fewer coats of your (possibly more expensive) fancy coloured paint.

The white coat will also highlight to your eye any remaining blemishes so you can smooth and re-mist them.

If you're having a strong colour change over that dark paint, use a light grey emulsion, which obliterates better.

We gave it a go and then painted over it.