Emulsion for mist coat

[endecotp]

Can anyone advise on the relative merits of contract matt, vinyl matt and "paint for new plaster", for mist coats on plasterboard?

In particular, say I am going to finish with white vinyl matt. I can save quite a bit of cash by just buying one big tub of that, and also using it diluted for the mist coat, rather than buying smaller tubs of different products. Is there any disadvantage of doing that?

I have in fact already done one mist coat using diluted vinyl matt and it looks OK, though I have yet to apply top coats.

Thanks.

 

[Mottie]

I have in fact already done one mist coat using diluted vinyl matt and it looks OK, though I have yet to apply top coats.

That’s what I always do. I hope you gave the plaster a quick once over with some sandpaper first though.

 

[securespark]

I give the plaster a quick sand with the finest paper where there are imperfections.

Then I wipe over with a very slightly damp microfibre cloth.

Then I mist coat with Dulux Trade Matt emulsion watered down 15%.

 

[johnny2007]

Look at post 13 on this thread

Post in thread 'New shiny plaster: to sand or not to sand before painting?'

10 Sep 2022

Ok, just been there and scratched the paint with my fingernails.
These are the results:
1. Unsanded plaster: the paint can be scratched off without much effort, exposing the plaster underneath.
2. 180 grit sanded plaster: to scratch the paint, i needed to apply some good effort and plaster becomes exposed after a couple of attempts.
3. 3m scratch pad sanded plaster: this seems to be the best method of the 3. It is difficult to scratch the paint and after some effort, only the superficial paint can be scratched off, but the plaster doesn't get exposed.

So, it seems that a light rub gives...

• johnny2007

• 

 

[endecotp]

I hope you gave the plaster a quick once over with some sandpaper first though.

Yes, I have invested in a Mirka hand sander with dust extraction; definitely recommended.

 

[opps]

Yes, I have invested in a Mirka hand sander with dust extraction; definitely recommended.

The Mirka Handy Sanders are great. I have two different sizes. I also have lots of Festool sanders but the Mirkas are great when I am trying to avoid the noise made by the Festool sanders. I can dial down the speed on the dust extractor which means I am making much less noise.

 

[johnny2007]

The Mirka Handy Sanders are great. I have two different sizes. I also have lots of Festool sanders but the Mirkas are great when I am trying to avoid the noise made by the Festool sanders. I can dial down the speed on the dust extractor which means I am making much less noise.

What do you do with 2 Mirka sanders and lots of Festool sanders???
Are you an octopus?

 

[securespark]