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Old 06-29-2008, 05:03 AM   #16
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major paint peel


Yeah I will Nestor, we had rain today so hopefully tomorrow it be a better day,one thing suggested to me by someone who seen the ceiling was that it might be due to kalsomine link: http://www.heritagepaints.com.au/troubleshooting.htm

They had a simular problem and they ended up replacing the ceiling or the damaged sheets.

Thank you

Cart

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Old 06-29-2008, 07:29 AM   #17
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Kalsomine. Very Interesting.
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Old 06-29-2008, 07:44 AM   #18
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Quote:
Originally Posted by Sir MixAlot View Post
Kalsomine. Very Interesting.
Calcimine?

Not much sticks to a calcimine ceiling
Calcimine Recoater is basically a flat, white, oil-based paint
That stuff, and a sacrifice to the Paint Gods before applying it might do it if it's calcimine
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Old 06-29-2008, 08:22 AM   #19
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Calcimine?
That's what I thought. But check it out. Kalsomine
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Old 06-29-2008, 08:26 AM   #20
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Dictionary: Kalsomine





n. & v. t.
Same as Calcimine.
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Old 06-29-2008, 11:36 AM   #21
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http://www.plasterlord.com/notebook/fcalcimine2.htm

But, if the problem is kalsomine paint, it wouldn't just be in one area of one room. It would be everywhere on every ceiling. Cart should have had problems with paint peeling off the ceilings in more than just that one area.
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Old 06-29-2008, 11:43 AM   #22
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Nestor, I'm with you. I too still think it's a moisture issue.

Cart, How about a picture of the outside of the house in that area?
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Old 06-29-2008, 09:42 PM   #23
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Sir Mixalot: I really don't know what to think. All I know for sure is that there has to be a good reason why the paint seems to be sticking fine in the rest of the room, but not in one (roughly linear) area.

Cart:
According to that link I posted, kalsomine was basically just a mixture of calcium carbonate (chaulk), some pigments and some glue mixed together (presumably with water) and applied to the ceilings (and presumably the walls, too). They used it because it could be applied over fresh plaster which has a very high pH. The problem is that they didn't use much glue in their paints, and what they did use was organic and has now decomposed, so there really isn't much holding the chaulk and pigment particles together. According to this, it should be soft and powdery to the touch.

It seems to me that there is a very easy way to see if your paint problem is due to the fact that you're painting a surface that's too soft and powdery for anything to stick to.

Can you take a piece of Scotch tape, stick it to the ceiling where the paint is peeling, pull it off and see if the sticky side is coated with powder when it comes off?

Or, just scratch it with your fingernail, a screwdriver or paint scraper and see if powdered paint comes falling down on you like rain.

Last edited by Nestor_Kelebay; 06-29-2008 at 09:44 PM.
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Old 06-30-2008, 02:02 AM   #24
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Thank you all for the input.

The plaster bloke came around to do a quote to replace the ceiling,he advised me to bring a painter in as its more of a paint/adhesive problem than forking out about $700 plus for a new ceiling( which I thought was good of him,as some would just do as one asked) ,plus the $400 plus for electricains to relocate the air con unit

Painter came around and told me it was kalsomine which is causing the problem,he scrapped back some of the peeling paint and even though the ceiling will not be as smooth as the rest he has said that he can repair it and point me in the right direction for what sealer I need.

Quote:
But, if the problem is kalsomine paint, it wouldn't just be in one area of one room. It would be everywhere on every ceiling. Cart should have had problems with paint peeling off the ceilings in more than just that one area.
I asked about that and he said that from what he can see from the rest of the ceiling and where the area of repair is in relation to where we where encountering paint blisters it looked ok(hope there is no hidden monster underneath the good looking part of ceiling)
I have scrapped away where he has indicated repairs and I am now trying to scrape of paint which seems adhered to the plaster,to get it any off I need to hit it hard with the scrapper and then only small pieces chip off and not peel.The coats I put on still want to peel off,not as bad in some spots,I may have been at fault in relation to my undercoats on existing paint,room temp and time betwen coats.

He said that he has encountered ceilings worse than mine as it is an old house and says he is 90% sure it will be fine when he has finished.

All up he reckons about $200 to do the job.

I asked about moisture and he said he could find no indication of it in the lath and plaster.

So rather than fork out some big dollars for a new ceiling I am going to take the punt and go this way.

I took the tarp down today that seperates this room and the rest house and put the heater on for first time in 3 mths,I have a happy wife again,well untill I close it up for ceiling work

Thanks so much for everyones input into my problem,the painter comes the end of the week so if all goes well I will post back on results.

Fingers are crossed.
Appreciated
Cheers

Cart

Last edited by cart; 06-30-2008 at 03:47 AM.
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Old 06-30-2008, 05:43 AM   #25
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major paint peel


Thanks for the update
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Old 07-08-2008, 07:17 AM   #26
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Final update,
Ceiling is done.

Cleaned off peeling paint,washed kalsamine off from exposed plaster,sanded edges of good paint on ceiling and feathered off.

Put total joint finish on edeges of paint to plaster and filled in some basic grooves that occured during repair,sanded all that back.

Put on one coat of ceiling paint,then one coat of primer/sealer(wash up with meths) Applied a small area of ceiling paint and still showing the previous ceiling colour coming through, so put on one coat of Zisser BIN stain blocker (had to remeber that name srry if its wrong) it now has two coats of ceiling white on and all look real good, considering the trouble it has gave me.

Lol I have since found that I could have added a product to my paint and it would have used kalsamine to my advantage.

It is not as smooth as the rest of the ceiling,but unless you really look you can't notice it,I think a few things contributed to the hassles I had.

1 Not knowing about kalsamine.
2 My preperation was not really up to scratch.
3 Possibly the temp of the room,it was very cold and had been subjected to two months of cold moist draughts.
3 Because of low temp not allowing enough drying time between coats of paint.

The walls are now painted with two small blisters,easy fixed now I know what to do.

Thanks again for all the input everyone gave, I go away wiser about paints and it's material it sticks too.

Cheers

Cart
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Old 07-08-2008, 07:14 PM   #27
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Thanks for the update

Don't sweat the calcimine thing...it's so rare to find these days, it didn't even occur to me it might be calcimine
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Old 07-24-2008, 10:14 PM   #28
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Interesting thread. How did this turn out? I had similar paint peeling in a closet and just covered over it...no moisture on this end and everything looks fine. I guess I lucked out.

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