Mist Coat failure at intersection of wall and ceiling

[amdavies207]

I recently had a room reskimmed by professional plasterer. Finish looked good.
I waited 4 weeks for it to dry out- all plaster was the light pink colour- before I applied the Mist Coat (Macpherson's Eclipse diluted 30%).
Mist coat went on ok, all except at the intersection between the ceiling and the wall. About 3 cm in, all around the circumference of the ceiling the paint didn't seem to apply very well.
Gave it another 48 hours and did the masking tape test- everywhere else it passes the test except this problem area- the paint comes right off.
I gave a section of the failed part another coating of the mist coat, waited again, but still failing.
Any ideas of how to fix?
Cheers

 

[opps]

Was the ceiling plastered before or after the walls?

At a guess, it might be down to the PVA used by the plasterer.

 

[amdavies207]

Hi opps

Was the ceiling plastered before or after the walls?

At a guess, it might be down to the PVA used by the plasterer.

Hi opps,

The ceiling was plastered first, then the walls.

 

[Chivas69]

Go round the edge with a bit of sand paper. Then you can re mist the edge. You could use some Leyland acrylic primer/ undercoat for a good bond. (Cheap enough)
It's quite likely pva bonding.