How to fix these patches

[Deleted member 262063]

Hi,

I have a newly plastered wall that was fully dry (Left for about 3 weeks)

I painted a mist coat first and have now gone over with 3 coats of white Matt paint (crown contract super covertex) I used a brand new low pile roller.

The wall straight on looks perfect but from the angle looks all patchy.

https://ibb.co/C1Mpbvd

 

[Bosswhite]

It sounds like the Plasterer over polished the area , suggest a light rub down with a fine sandpaper and a couple of coats of mist emulsion .

 

[Deleted member 262063]

It sounds like the Plasterer over polished the area , suggest a light rub down with a fine sandpaper and a couple of coats of mist emulsion .

Sorry for the questions but I'm a Business Analyst and Question a lot.

Sand down the spots of whole wall?
How fine sand paper? 320grit maybe?
Mist coats then reapply main coat?

 

[Deleted member 292770]

looks like damp patches from plasterboard adhesive. was the wall boarded then skimmed?

 

[Deleted member 262063]

looks like damp patches from plasterboard adhesive. was the wall boarded then skimmed?

Definitely not that as the plasterboard was screwed into the eall

 

[Deleted member 292770]

you screwed pb directly to the wall or battened first?

 

[Deleted member 262063]

Battens on wall first. I think I figured the problem, low pile roller not getting the unknown bits, some of the plaster areas a bit rough