Drywall / Sheetrock bubbles or blisters
jseeley
11 years ago
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millworkman
11 years agogeoffrey_b
11 years agoRelated Discussions
latex paint bubbling on patches
Comments (15)Hello w0lley32, I have worked in the ink and coatings industry for 36 yrs or so and have experienced tiny bubbles forming on patching compound after sealing them with latex primer or even after a top coat with latex or acrylic paints. This may be caused by "off gasing". Because the patching compound on a smooth surface is applied in very thin film it is subject to quick penetration. Components in the patching compound react with resins and or solvents in the latex paints to form gases which bubble up through the surface of the wet paint. Even water base systems have evaporating components. For sure using an oil base Alkyd primer will prevent the bubbling but if you top coat this with a latex or acrylic (water base) paint or primer it may penetrate the alkyd and off gas again. The sure way to prevent this is to top coat with Alkyd paint but it is clear you do not want to use these products so another avenue may be to patch the bubbles with a different type of compond such as Polyfilla that dries much harder than conventional drywall compounds or even white wood filler. I've used both and had good success. You can patch a small area first ,sand and clean and test it for bubbling after you prime with a good latex. For sure you need to find a patching compound that dries with a harder finish to prevent latex penetration and off gasing, otherwise you'll get stuck using Alkyd....See Moreblisters and peeling paint
Comments (14)Yeah, I understand what you are saying. The room is a just a regular bedroom - low humidity (in fact lots of forced hot air coming through the heating vents) - so I don't know of any reason why the primer would not dry or cure as it should. The walls look perfectly fine (other than the hairline cracks that I saw in a few places in the corners and the "testing" that I did). So, it's been at least a week - is there any way to know for sure if the primer is adhering as it should? I really feel stupid, because I suspect that there was nothing wrong to begin with and being able to peel the primer off doesn't necessarily prove anything....See MoreBM Paint bubbling after putting it on
Comments (5)Very strange, I asked about wallpaper because it sounded like you may have had some paste/glue still on the surface, that's obviously not the case. Then you say: "just where the skim coat and primer were put on. " You also say: "mud was put over the entire ceiling " so I am confused again, this time on where the failure is taking place. In any case, I'd agree with "paintguy", but think you may have to do some "skim coating" again to level where the bubbles come off. Is the primer also latex? Is there any chance water/mositure is trapped in the areas where the bubbles occur?...See MoreNew Construction Sheetrock Primer Recommendation
Comments (6)Speedhide is a pretty basic primer, but you're not wrong to use it...just use a good FULL coat. I'd consider TWO coats of this primer if you're one to put on thinner coats. >>> Apply this kind of primer at no greater than 300s.f./gal rate. >>> Aim for about 250-300sf/gal. 123 is a much better choice!! * Some new-construction painters/sheetrockers/construction people will think that's insane, because all they know is how to do stuff "at its cheapest". * Per arm/roller movement...123 is giving you TWICE the sealing/holdout ability relative to cheaper "PVA-Class" drywall primers. * The "primer" in paints like that Behr-series....IS NOWHERE NEAR the capability of primers like 123. Not even remotely!!! What kind of stores are near you, besides HD, for paints? Do you have an ACE "nearby"? Faron...See Morejseeley
11 years agobus_driver
11 years agobrickeyee
11 years agojseeley
11 years agobrickeyee
11 years agojseeley
11 years agobrickeyee
11 years agojseeley
11 years ago
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