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PostPosted: Sun Jan 07, 2018 11:53 am 
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I have recently had plastering in my lounge and hall way, I left to dry for about 3 weeks before painting , I prepped the walls and done a mist coat I then did a base coat with paint especially for new plaster then 3 colour coats.
The paint is chipping away near the coving now and I have no idea why.
Can anyone help? And also what do I do?

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PostPosted: Sun Jan 07, 2018 5:21 pm 
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It is difficult for me to understand what exactly is the problem, so some questions.
a. Is the paint "chipping" on the coving or is the paint chipping off the wall near the coving or both?
b. Is the coving new and you have just painted it as well as the wall?
Paint would normally not "chip" up there, chipping is what happens when you bump paint with the vacuum cleaner, a chair and so on e.g. usually chips come off on door frames and doors and similar. Is it flaking, lifting off by itself and falling down? A photo from a distance and close up may help.

c. Was it skim coat or the deeper plastering with bonding and skim coat etc.?

d. What paint did you use for mist coat and what dilution.
e. What paint for the "basecoat".
f. What paint for the top coats x3 and how long did you leave between each of your 5 coats?

Complete guesses ... if the problem is on the coving and it is old it may be contaminated with PVA by the plasterer. If it is new coving should have been put on after plastering so the adhesive may be giving you problems (not really). Most likely the mist coat where you applied it by brush near the coving was not good enough, and subsequent coats of paint do not adhere. If the plaster was not dry enough when you painted it then I would expect more problems particularly lower down on the walls.

Over to you :-)

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