Painting on Newly Skimmed Walls

FreeBear

greenbee wrote: »

We've had to scrape the original 1980s paint off the walls here before repainting. It hasn't been fun.

A good argument for using lining paper and painting on top of that - A lot easier to remove when the time comes.

krey

however that's still a risk, it doesn't really takes any much time to do , costs nothing and you actually save money on your real paint because you will need much less of it!

ok well last time I did it this way, did the plaster, left it to dry, emptied out all the spare paints I had left from other jobs in one large bucket, mixed them all up with water and painted with it everything as mistcoat.. however after painting it with the mistcoat - I had realized I had mixed up myself a paint that I love so much that I left it like that without actually putting on a real coat
So far the ''mistcoat'' is still standing very nice and I simply doubt I could actually buy a better shade than what I randomly mixed up just to empty half-finished pots

Doozergirl

thescouselander wrote: »

Yes, that's what I've read in a few places but in reality I've never found it to be a problem. I suspect the actual risk of the paint falling off is quite small.

So the logic is what? Don't do it the most sensible way because it may or may not go wrong?

My daughter's room wasn't mist coated as when we painted it, our colour pulled the first off the walls. It stayed on for a good year but got scratched and lifted in one place, at which point is was too irresistible for her to peel it off the wall in swathes. At which point I couldn't resisit it either. Took most of it straight back to bare plaster! The rest that wouldn't come had to be sanded back.

The amount of extra effort required involves running the tap for a few seconds. It saves money too so there is no reason against doing it.

anto164

Mist coat is a definite to-do i would say, and my plasterer was clear that we needed to do this too. cheap emulsion is the go-to stuff. Either get a big tub of B&Q value emulsion and paint that straight on (as it's already really watery) or get whatever 10litre tub of white matt which is on offer and water it down by about 25%. I always do 2 coats of mist, then 2 coats of final colour. Takes time, but it's worth it.

And don't forget to leave the plaster a couple of weeks before painting until it is 100% dried out.

Chrishazle

Crown do a paint specifically for what you want to do, it breathes so you do not have to wait for the plaster to dry, do not need a mist coat.
https://www.crowntrade.co.uk/product/interior-products/crown-trade-covermatt-emulsion-3/

Grenage

There's all sorts of wondrous paint available; paint that avoids misting, one-coat paint, non-drip paint, etcetera. It's almost all rubbish and a complete waste of money.

Some cheap watered matt is quick to apply and gets the job done properly.

TheCyclingProgrammer

Chrishazle wrote: »

Crown do a paint specifically for what you want to do, it breathes so you do not have to wait for the plaster to dry, do not need a mist coat.
https://www.crowntrade.co.uk/product/interior-products/crown-trade-covermatt-emulsion-3/

You could use that, but as its breathable its probably just a special formulation of non-vinyl matt so it will have almost no durability. You'll still need to wait for it to dry before applying your top coats anyway.

FreeBear

TheCyclingProgrammer wrote: »

You could use that, but as its breathable its probably just a special formulation of non-vinyl matt so it will have almost no durability. You'll still need to wait for it to dry before applying your top coats anyway.

According to the datasheet, it uses a vinyl acetate copolymer as a binder - No data for the permeability, so I'd treat the claim of breathability with a degree of suspicion. Certainly not in the same league as say clay paint or lime wash.

Chrishazle

TheCyclingProgrammer wrote: »

You could use that, but as its breathable its probably just a special formulation of non-vinyl matt so it will have almost no durability. You'll still need to wait for it to dry before applying your top coats anyway.

On another forum I frequent a member has just had his ground floor re-plastered, and a builder decorator on the forum recommended the Crown covermatt.

TheCyclingProgrammer

FreeBear wrote: »

Certainly not in the same league as say clay paint or lime wash.

Agreed. We used clay paint (Earthborn) in our bedroom, living room and dining room. Its lovely paint, pretty much covered in one coat and has a lovely finish.

But it still has pretty much no durability - in hindsight I wish we'd either used something else or applied a matt glaze over the top, in the dining room at least. If you get anything on it other than water (which just evaporates) it will stain and there's no getting it off. You can touch it up but we've had mixed results with Earthborn - on lighter colours our touch-ups are practically invisible but the dark purple in our dining room does not touch up well at all.