08:31AM | 07/06/06
Member Since: 03/04/03
44 lifetime posts
Site conditions are 26 year old house with drywall walls. Appear to have only two prior coats of paint, both coats appeared to be "flat" paint.

I needed to remove a 6'x8' section of drywall around/next to the entrance door to install a new, larger door. Reframesd, put back NEW drywall, taped and plastered. Then I used two coats of quality primer for latex based paints.

The finish was perfect up to this point. The primer covered well and there were no problems.

After 16 hours of dry time on the primer (next day), I applied two coats of "eggshell" finish latex paint.

Over the OLD drywall, I have some blistering, or more like bubbling in the paint. It started with a cluster of small bubbles which appeared to be almost like trapped air (picture pancake batter when you whip it up and pour it on the pan). Some of these joined with each other or grew to about 10-15 quarter (as in pocket change) size bubbles. A few popped and now look like dimples. Some others simply dried and are now like shells.

I will sand the bubbles flat and plaster/prime/paint, just curious if there are any theories on cause? Especially given that the primer went on fine and that this ONLY happened over the existing drywall, not over the new drywall.

Any help is appreciated.




04:51AM | 07/09/06
Member Since: 03/25/06
39 lifetime posts
If I understand what you've written, there are two coats of flat paint with no primer on the old drywall. If that is true, then thats the problem. Paint is not meant to be used without a primer (some have labels that say you can and I've never had anything but problems with them). Some builders will cut cost on the painting of a house in such a way that the only way a painter can make a living is to use the cheapest paint that can be found and cut it with as much water as possible leaving a finish that causes this kind of problem. When a new coat of latex is applied, the old paint is releases from the drywall (especially on the joints and nail or screw heads),

The best solution I can reccomend is to use an oil primer such as CoverStain from Zinnser. Oil primers arent "wet" like a latex is and won't allow the old paint to expand from getting "wet", and it will seal the surface and keep the new latex paint from penetrating through to the old paint. It's a pain to clean up after and it stinks like heck, but I'm sure you won't have a repeat of the same problem.

Hope that helps.

Bruce Ridenour


07:54PM | 04/07/14
Member Since: 04/07/14
1 lifetime posts
I'm having a similar problem, but perhaps not exactly. I peeled multiple layers of paper off my guest bath wall, and should be brought up on charges for the damage done. I murdered the walls! I had someone come in to repair them. He basically skim-coated to a fine smooth surface. But had bubbling issues along the way. After fixing and re-skimming multiple times we thought it was ready to go. I bought my primer and when I was done rolling it on, I stood back and decided to do another quick roll or two over a few areas. That's when it happened. Bubble, bubble, bubble. Not everywhere, but in the most visible areas! I was just reading about a primer called Gardz by Zinseser. But I am not sure I can use it on top of what's there now. The instructions were to put it on the drywall, then skim coat. My concern for using the CoverStain, or oil-based primer, is that the room has no windows and is a really small space. But even if I fix the few small areas that are bubbling now, I am afraid that there will be more after I apply a coat of paint - from what I am reading from my research, there is a strong possibility that will happen. Help! I am on running out of time for the project. Thank you so much. P.s. - I am not really sure how to fix the bubbling yet either! My handyman is not able to come back.


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

Deep blue grays like the shade shown in this example "have a nautical, serene feeling," says Amy Hendel, designer for Hend... Built on a rocky island in the Drina River, near the town of Bajina Basta, Serbia, this wooden house was cobbled together ... Large steel-framed windows flood the interior of this remodeled Michigan barn with daylight. The owners hired Northworks A... Edging formed with upside-down wine bottles is a refreshing change. Cleverly and artistically involving recycled materials... A Washington State couple called on BC&J Architects to transform their 400-square-foot boathouse into a hub for family bea... Similar to the elevated utensil concept, hanging your pots and pans from a ceiling-mounted rack keeps them nearby and easy... Few projects are more fun than upcycling a vintage piece in a surprising way. Outfitted with a sink and a delicately tiled... The thyme growing between these stepping stones adds a heady fragrance to strolls along this lush, low-maintenance garden ... Decoupage is an easy way to add any paper design to your switch plate, whether it is wallpaper, scrapbook paper, book page... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Reluctant to throw away any of those unidentified keys in your junk drawer? Hang them from a few chains attached to a simp... A stripped-down model, sans screened porch, starts out at $79,000. Add the porch, a heated floor for the bath, and all the... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... This garden shed has been decked out to the nines. Designer Orla Kiely created the intimate home for a flower trade show, ...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon