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Old 06-09-2008, 07:23 PM   #1
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Little paint problem


Well i painted my washroom ceiling and I had a little area that bubbled and looked real bad. I waited 2 days then i scraped the bubbles off but the paint didnt cure yet. I cleared the area to be fixed but now there is a little paint ridge where the paint and the drywall meets. If i prime 2 coats and paint 2 coats, will that little ridge go away? Should i sand the ridge when its completly dry or wait a day, mud then sand?

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Old 06-09-2008, 08:21 PM   #2
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Little paint problem


Paint colors, it doesn't fill

You'll probably want to sand (or possibly mud, depending...) out the ridge when it's dry and cured

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Old 06-09-2008, 08:22 PM   #3
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Little paint problem


Maybe get a spray can of Kilz and lightly spray the affected area. Let dry. Repeat the Kilz step. Let dry. Mud. Let dry. Sand. Prime/check mud work. Repeat mud if needed. Prime, If re-muded. Then Paint.
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Old 06-09-2008, 08:43 PM   #4
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Little paint problem


Well i think after the 10th coat it might fill

Your right, i had a hunch but im no painter. I primed it tonight so that i can mud and not have the edges pull off some more.

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Paint colors, it doesn't fill

You'll probably want to sand (or possibly mud, depending...) out the ridge when it's dry and cured
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Old 06-10-2008, 01:00 PM   #5
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Little paint problem


'Aint this fun?'
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Old 06-10-2008, 02:52 PM   #6
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Little paint problem


Man im about to pull my hair out!

Yesterday i did a light sanding to get the paint that was coming off and not to pull anymore off. Then I cleaned it and put a coat of primer so that when i put mud on, it has a little layer so not to keep peeling the existing paint off.

Today i went to put a thin coat of mud on, went on nice, didnt disturb the paint already there. 10 minutes after i look at it, theres bubbles on the mud now!

Is this due to the paint underneath not being 100% cured? what should i do?

Last edited by simonb; 06-10-2008 at 02:56 PM.
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Old 06-10-2008, 07:25 PM   #7
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Little paint problem


Could be
Could be you didn't mix you mud
Could be moisture from the other side

Is there a shower or bath tub in there?
An exhaust fan?
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Old 06-17-2008, 03:47 PM   #8
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Little paint problem


Well i waited and tried everything and was still getting bubbles, even when i was putting mud to fix the problem. I returned to the store and explained my problem and the guy gave me an oil primer. So what i did was primed the area with the oil primer, waited till it dried, put my mud, dried, sanded, primed twice and everything looks much better.
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Old 06-17-2008, 08:13 PM   #9
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Little paint problem


Thanks for the update
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Old 06-17-2008, 09:01 PM   #10
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Originally Posted by simonb View Post
Well i waited and tried everything and was still getting bubbles, even when i was putting mud to fix the problem. I returned to the store and explained my problem and the guy gave me an oil primer. So what i did was primed the area with the oil primer, waited till it dried, put my mud, dried, sanded, primed twice and everything looks much better.
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Maybe get a spray can of Kilz and lightly spray the affected area. Let dry. Repeat the Kilz step. Let dry. Mud. Let dry. Sand. Prime/check mud work. Repeat mud if needed. Prime, If re-muded. Then Paint.
I thought that might work.
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Old 06-17-2008, 10:13 PM   #11
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Little paint problem


You said:

"Well i painted my washroom ceiling and I had a little area that bubbled and looked real bad. I waited 2 days then i scraped the bubbles off but the paint didnt cure yet."

Was this a latex paint that was applied?

If so, is there any reason you can think of why it hadn't fully "cured" in two days? Was it very humid in the bathroom at any time during the two days that the paint was trying it's hardest to dry? Was the ceiling cold because of cold outdoor weather?

Or, was it a heavily tinted paint? And by that I mean, was it a deep colour, like navy blue or ruby read or canary yellow instead of an off-white colour like powder blue, light pink or "Hint of Saffron"?

If you were using that bathroom for bathing while the paint was drying, and expecially if the paint was a heavily tinted colour, the paint bubbled because it wasn't "curing" properly.

(I'll probably explain this in another post, but latex paints don't "cure" unless they're a cross linking floor paint. Latex paints form a film by a physical transformation (kinda). It's that physical transformation that makes latex paints darken as they dry. Lots about this some other time if and when you want.)

Last edited by Nestor_Kelebay; 06-17-2008 at 10:43 PM.
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Old 06-18-2008, 10:01 AM   #12
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Little paint problem


hehe, im sorry i didnt know the type of primer you had suggested was oil based. Should of googled it.

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I thought that might work.

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