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Old 09-19-2012, 01:11 PM   #1
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Bubbles in Paint appearing on Ceiling - Help!


Hello all!

I am redoing a bedroom and am having trouble with the ceiling.
The ceiling used to have the popcorn textured stuff, but I scraped it off.
Beneath the textured surface was the drywall paper, and it looked just fine.
Nice and smooth.

I proceeded to screw to the drywall to the ceiling joists to make it more secure (it was nailed originally), and then I patched the ceiling with CGC drywall compound (did three coats to get it nice and even).
So far, no troubles.

Next the ceiling was primed with Home Hardware Beauti Tone Acrylic Primer (two coats). Next the paint was applied (Benjamin Moore Concepts "Eggshell" paint).
This is where the trouble was noticed.
The paint bubbled. Everywhere.

So after it really set I scraped the bubbles off with a sharp wood chisel, mudded again, sanded again, waited 48 hours, and last night put on a coat of primer.
As the primer was drying bubbles were forming on the areas that were mudded.
I stopped priming, as I knew that what I had done was not going to work.

I have a dehumidifier running in the room to remove excess moisture. This apparently did not help.

Am I using the wrong drywall compound?
Should I put something over top of the drywall compound before I try priming again?

Help! (and I am a layman, so don't get too technical on me!)

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Old 09-19-2012, 08:45 PM   #2
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Bubbles in Paint appearing on Ceiling - Help!


Using a cheap roller cover.

Air trapped in the bottom of the paint can can be brought to the top of the can by a few taps on the side of the can or with the cover on drop it on a hard surface from about 6".

Using to thick a nap roller. Try a 1/4 nap and see what happens. There a pain because they do not hold much paint but faster then having to paint it three times.

Over rolling.

Paints to thick and needs a tiny amount or thinning or some Flotrol.

All can cause bubbles.

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Old 09-19-2012, 10:13 PM   #3
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Bubbles in Paint appearing on Ceiling - Help!


I'm stumped by this one. The only thing I can come up with is perhaps the dry time of your primer. Since you did a lot of work to that ceiling, it's always best to wait a day or so in between coats of primer. I know many brands advertise 2 hour dry time, etc. but it has been my experience to wait a day to let it really dry well. I would have used a drywall primer........I've never heard of the Hardware Beuti Tone brand you used. A quality drywall primer soaks up into the joint compound just enough to seal it up and prepare it for the topcoats. You really only need one, maybe 2 at the most, coats of primer. You really are putting a lot of layers of paint on a virtually new surface. And, perhaps you didn't get all the dust off the ceiling before priming. Just a few thoughts.........
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Old 09-20-2012, 08:27 AM   #4
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Bubbles in Paint appearing on Ceiling - Help!


I would scrap sand and definitely try a another primer, a good primer only needs 1 coat. And I would talk to your Ben Moore rep.
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Old 09-20-2012, 11:07 AM   #5
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You may want to try an oil primer. I am loathe to use oil myself and only do it when absolutely necessary, but when I have had trouble with bubbling, oil has often (but not always) solved the problem.
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Old 09-20-2012, 04:27 PM   #6
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Bubbles in Paint appearing on Ceiling - Help!


My only thought is that there is some sort of residue left from the popcorn ceiling. The primer just looks like it is adhering and when you add the paint it is all bubbling.
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Old 09-20-2012, 04:29 PM   #7
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Quote:
Originally Posted by joecaption View Post
Air trapped in the bottom of the paint can can be brought to the top of the can by a few taps on the side of the can or with the cover on drop it on a hard surface from about 6".
Hugh?
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Old 09-20-2012, 11:08 PM   #8
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Bubbles in Paint appearing on Ceiling - Help!


Thanks for the thoughts! I talked to my paint guy and told about my troubles. Once he was aware of everything that had been done and been there before he suggested an oil based primer.

I am also using a different drywall compound. The CGC stuff seem awfully wet. Like water in the edges of the pail wet. So I bought the "Home" brand from Home Hardware.

Tonight I patched the ceiling, and it was way drier than the CGC. Like it should be.

So after drying (will sand on Saturday), I will apply the new primer likely Monday or Tuesday, lots of time for things to dry out if need be. The oil based primer is supposed to fix an assortment of issues, and I am hoping this one will fix this.

Once I am done applying the primer I will update the thread.

Thanks again!
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Old 09-21-2012, 02:25 AM   #9
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At some point you might want to update your profile with basic geographic information so we know where you are. You are mentioning a brand I have not heard of and sometimes, especially if you are not in the us, the terminology can be different. It helps us help you if we know.
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Old 09-25-2012, 10:39 AM   #10
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Bubbles in Paint appearing on Ceiling - Help!


Geographical information updated!

In Canada there are Home Hardware stores.
The brands carried there are Beauti Tone, and Benjamin Moore (and maybe some others that I haven't really noticed).

Anyway, back to the topic!

I no longer have bubbles.
The oil based primer did the trick, but it may have helped that I didn't have an excessively wet drywall compound.
Last coat of paint goes on today, then the painting in that room is done.

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