Removing too thick mist coat

[Barnboy]

As in my other thres, it looks like I've put my mist coat on too thick which hasn't adhered brilliantly.  I've removed my bathroom ceiling paint quite easily, it scraped off in sheets, my walls are slightly different, they will scrape but are more flakey.

What recommendations would people have for removal,  I saw something about water and a scotch pad and have also been looking at Peelaway but I haven't tried either yet.

Thanks

[Nickfromwales]

A tilers sponge, they’re lightly coarse, and lots of elbow work I’m afraid. 
Anything more will mark the plaster. 
 

What paint did you use? Or is that discussion in another thread already? 
 

It may be that the plasterer polished the hell out of the plaster and gave it the undesired mirror finish… If so you’ll need to discuss this before putting paint back into it. 

[Barnboy]

It was Teknos paint, the literature I found said 10%, I was spraying it and had only ever sprayed vehicles before so watched the videos and had the same finish as them. I thought no more of it until it pulled off with Masking tape, I've had a friend's well know painter have a look and he says the plaster is perfect and it's the water content that's the problem.

Searching some more and Teknos UK shownin their own videos that they mix at 40%, why their literature says 10% i don't know, all I do know is that I need to sort it as I'm totally gutted about it.

[Kelvin]

Like I said in another thread you don’t need anything special as a mist coat. I used relatively inexpensive Valspar Express Coat that I got half price from Travis Perkins. It has the advantage of not requiring mixing (in fact it specifically says not to) I used a roller rather than spray gun. 

[Marvin]

Hi @Barnboy

 

I've had this problem with cheap water based mist coat. The paint came off with a damp cloth.

 

Also had challenges before when I think the plaster had got dusty before being painted...

 

[Kelvin]

43 minutes ago, Marvin said:

Hi @Barnboy

 

I've had this problem with cheap water based mist coat. The paint came off with a damp cloth.

 

Also had challenges before when I think the plaster had got dusty before being painted...

 

That’s normal though in my experience. Once you apply the final top coat with a harder paint it’s fine. 

 

I have always wiped the plaster with a damp sponge to remove any dust. 

[Blooda]

Talking from experience... Long story, but our first decorators C@cked up and managed to do one coat of our whole 4 bed house in one day, that peeled. 

 

We had to get a Mirka dry wall sander and sand the whole house off and start again.

 

On a side [but related note] there is a difference between paint drying and curing.  So even though may be dry it is not cured.

 

 

 

 

 

 

[Barnboy]

@Blooda what grade sand paper did you use no to damage the plaster below ?