Plaster external corners

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Ive just had a stud wall removed and. Fitted some new kitchen units/work tops.

The area where the old wall was removed has been patched up and looks like this

Do those strips of pb look like they've been installed in a suitable way for plastering?

Whats the best approach make this good for painting?

90 degree corner beads, scrim tape on the joints and skim the walls?

I can skim the walls but not done external corners before so could do with some tips for applying and plastering over the beading.

Do you plaster both sides of the corner at once or is one at a time. Leaving one to dry first before doing the other?


Thanks
 
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Assuming the boards actually fitted ok as above, Fix the bead using a bit of skim or tack it/screw it
You’ll have to plaster both sides of it, but can feather it out say 6” from the corner (brush and water and the right technique)
Dub the corner out first with some skim and let it firm up a bit then go over the whole area 2coat skim. Run the trowel up and down the bead, not into it
How are you finishing the edge next to the black units, stop bead? If so same applies as above
 
You’ll have to plaster both sides of it, but can feather it out say 6” from the corner (brush and water and the right technique)

Im not great at feathering out but could have a go and if it looks crap id be better off skimming the lot since it's not a large area

How are you finishing the edge next to the black units, stop bead? If so same applies as above
That edge actually doubles back towards the unit like so

So its two external corners that ill have to do on that outer face
Would that need a couple of 90 deg beads. One each corner?
 
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Yeah but you’d then have to skim right up to the unit
You can get stop beads where you only skim one side of it, which may help if you want to not skim the other side of the corner
Look up thin coat stop bead vs corner bead
 

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