Help! Newly skimmed ceiling unpaintable...

Help! Newly skimmed ceiling unpaintable...

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Discussion

Jakestar

Original Poster:

436 posts

191 months

Friday 29th April 2016
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Having a bit of nightmare with the lounge ceiling, consider this a bit of a cry for help on the off chance anyone has a solution!

Decorating the lounge and the cowling is turning out to be a right PITA. I'm not new to painting fresh plaster (must cost etc) and every other room in the house has been fine (the lounge is the last room to be done). However any paint I roll onto the ceiling drys with awful roller marks etc - it's like the paint doesn't stick or something (picture below).

I've now tried 3 different paints (johnstones vinyl Matt, johnstones normal Matt, deluxe supermatt) and the end fruit is the same!!!

I ever tried rolling some vinsser stain cover - but alas no improvement...

Any ideas what I can do to give the curling some kind of decent finish?


ColinM50

2,631 posts

175 months

Friday 29th April 2016
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Your spellchecker's having a field day with the word "ceiling" isn't it?

Anyway, I'd try giving it a coat of dilute PVA and then painting it but sounds a bit of a mare tbh.

Jakestar

Original Poster:

436 posts

191 months

Friday 29th April 2016
quotequote all
On the mobile, which seems to decide how it wants to spell rather than what I type!

What dilution factor? Never had to pva new plaster before.

Chainsaw Rebuild

2,006 posts

102 months

Friday 29th April 2016
quotequote all
Hello mate, when painting new plaster you commonly apply a milk coat first.

This is just normal paint thinned with water until it's thin like milk. You paint that on, let it dry and then paint as normal.

Might be worth checking the ceiling is t covered in dust/loose material. If it is get that off first.

HTH

tuffer

8,849 posts

267 months

Friday 29th April 2016
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I had this problem and had a bloody nightmare scraping off all the pealing paint, as has been said PVA or milk coat first.

Joe M

672 posts

245 months

Friday 29th April 2016
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Shouldn't need pva, cheapest Matt emulsion you can get, dilute 50/50 with water and paint a coat. This will dry quick, half hour or so for next coat, add some more paint to the dilution to thicken it up, paint again. Do this 4 or 5 times with a stronger paint dilute each time then use your preffered top coat.

toasty

7,472 posts

220 months

Friday 29th April 2016
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Joe M said:
Shouldn't need pva, cheapest Matt emulsion you can get, dilute 50/50 with water and paint a coat. This will dry quick, half hour or so for next coat, add some more paint to the dilution to thicken it up, paint again. Do this 4 or 5 times with a stronger paint dilute each time then use your preffered top coat.
+1 I have learnt this the hard way.

Jakestar

Original Poster:

436 posts

191 months

Friday 29th April 2016
quotequote all
To confirm - the paint isn't peeling and I did apply 1 mist coat 50/50 diluted emulsion with water before I started on the neat coats (as I have on all other walls and ceilings I've done in the house!).

So more mist coats needed with gradually building up the paint/water mix?


Joe M

672 posts

245 months

Friday 29th April 2016
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If you have already done the neat coats then I don't think any more dilute coats on top of that will help actually?

Muppet32

173 posts

180 months

Friday 29th April 2016
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If some of your previous coats have dried with roller marks etc, these will have to be sanded out before you attempt another coat, otherwise they'll show through again.

If the Johnsons paint is quite thick, which it probably is as it's decent quality stuff, you need to be a good painter to make it all nice and smooth. It may be worth trying an 80/20 watered down mix, just to give you a bit more drying time to remove roller marks. Or get a decorator in an make it his/her problem.

I honestly thought that if you can shît, you can paint, but occasionally there's some skill involved wink

Joe M

672 posts

245 months

Friday 29th April 2016
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You could try going over the roof with a wet roller immediately prior to putting another neat coat on.

rb5er

11,657 posts

172 months

Friday 29th April 2016
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Chainsaw Rebuild said:
Hello mate, when painting new plaster you commonly apply a milk coat first.

This is just normal paint thinned with water until it's thin like milk.
You mean a mist coat I assume. Never heard anyone call it a milk coat before.

Muppet32

173 posts

180 months

Friday 29th April 2016
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If it makes the OP feel any better, as a builder (in my previous life) I've had several experiences involving the painting of new ceilings ending up a complete mess. Towards the end of a job, the householder has been bled dry by my invoices for all the extras and variations occurred along the way. To claw back some of the costs, and so his kids can still eat, he decided to pop off down to Wickes, buy some of their own brand emulsion and a cheap roller and get painting.

They spend every night for the next week rollering the same ceiling and ending up with a result not unlike the OP's. Look at it in the daylight and there's very noticeable and prominent build ups of paint caused by poor technique and, oddly, the fact that Wickes own brand emulsion is actually quite a good quality and hence quite thick and therefore awkward to apply.

Some of the householders asked us to rectify which, as above, involved sanding down the imperfections and re-rollering. We used to use the Leyland contract matt stuff usually on offer in Screwfix and B&Q: A good mix between opacity, ease of application and cost.


V8RX7

26,859 posts

263 months

Friday 29th April 2016
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If the marks are from excess paint then I'd use a pole sander and give it a quick sand, then a very thin mist coat to see what it looks like before adding any further paint.

I presume you are doing coats at 90 degrees to each other ?

All the painters I've worked with have added at least 10% water to decent paint.

astroarcadia

1,711 posts

200 months

Friday 29th April 2016
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Covermatt.
Covermatt.
Covermatt.

TartanPaint

2,988 posts

139 months

Friday 29th April 2016
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Once the soaking issues are sorted, for the very best finish:

Always roll in the same direction. Don't criss-cross.
If there's only one window or main light-source in the room, roll parallel to the window, not perpendicular. (Roll in the direction the light shines)
Don't turn the roller over (i.e. keep the handle entry side of the roller on the left, or right, but don't swap).

Edited by TartanPaint on Friday 29th April 12:09

Chainsaw Rebuild

2,006 posts

102 months

Friday 29th April 2016
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rb5er said:
Chainsaw Rebuild said:
Hello mate, when painting new plaster you commonly apply a milk coat first.

This is just normal paint thinned with water until it's thin like milk.
You mean a mist coat I assume. Never heard anyone call it a milk coat before.
Equally I haven't heard it called a must coat before smile

pdavison

1,637 posts

277 months

Friday 29th April 2016
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Alternatively try screwfix or similar plaster paint, it's very thick and works wonders from my experience. Were you sure it was absolutely dry before painting as we've found different rooms dry at different rates and this can have a big impact on how the paint sticks?

ZP

14,696 posts

189 months

Friday 29th April 2016
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Chainsaw Rebuild said:
rb5er said:
Chainsaw Rebuild said:
Hello mate, when painting new plaster you commonly apply a milk coat first.

This is just normal paint thinned with water until it's thin like milk.
You mean a mist coat I assume. Never heard anyone call it a milk coat before.
Equally I haven't heard it called a must coat before smile
30 years as a decorator and I've never heard it called a milk coat.
Mist, yes, but not milk....

dirty_dog

676 posts

176 months

Sunday 1st May 2016
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My independent decorating shop said to paint in a random circle pattern inside to out. I tried it with Crown Trade vinyl Matt and am very pleased with the results.
Previous rooms I'd tried with all manner of contract Matt and wasn't happy with any of them.