Weird issue with wall and paint
#1
03-16-15, 09:29 PM
Weird issue with wall and paint
Did major repairs in my living room, patching, sanding, then cleaning the walls and priming. At first everything was ok but as i put second coat of the primer there appered a few spots with bubbles that soon expended and then the both coats of primer just started to peel off like a thin film.
Another section just few feet over that was ok after priming started to show same issue when i applied paint. First few small bubbles that then caused all layers to simply peel off.
What the heck? What may be causing it?
Another section just few feet over that was ok after priming started to show same issue when i applied paint. First few small bubbles that then caused all layers to simply peel off.
What the heck? What may be causing it?
#2
03-17-15, 04:01 AM
Which primer did you use?
It sounds like the 1st coat of primer hadn't dried sufficiently and the 2nd coat partially rewetted it and the weight of the primer caused it all to lift from the wall. Contaminants on the wall under the first coat of primer could also be a cause. Did you remove the sanding dust before priming?
It sounds like the 1st coat of primer hadn't dried sufficiently and the 2nd coat partially rewetted it and the weight of the primer caused it all to lift from the wall. Contaminants on the wall under the first coat of primer could also be a cause. Did you remove the sanding dust before priming?
#3
03-17-15, 05:17 AM
can't imagine it being due to drying time.
I waited 24 hrs between each coat (primer and paint)....and also this is happening only on 1 of the walls....nothing like that on the other 3 walls nor the ceiling.
I useed Behr premium plus Drywall Primer and Sealer
I waited 24 hrs between each coat (primer and paint)....and also this is happening only on 1 of the walls....nothing like that on the other 3 walls nor the ceiling.
I useed Behr premium plus Drywall Primer and Sealer
#5
03-17-15, 12:25 PM
On the other side of the wall (framing) is just another room.
I looked for signs of water infiltration but didn't see any..... I don't know how I could have missed sections of the wall when cleaning after sanding but it is only logical explanation unless you guys can think of other reasons..... the only thing that doesn't fit with this hypothesis is why I saw no problems with the first coat of primer....???
I looked for signs of water infiltration but didn't see any..... I don't know how I could have missed sections of the wall when cleaning after sanding but it is only logical explanation unless you guys can think of other reasons..... the only thing that doesn't fit with this hypothesis is why I saw no problems with the first coat of primer....???
#6
03-17-15, 12:26 PM
Group Moderator
Generally speaking, only one coat of primer is needed.
As with Mark, I have never used that brand of primer so I cannot comment on it.
As with Mark, I have never used that brand of primer so I cannot comment on it.
#7
03-17-15, 01:51 PM
Since you've ruled out moisture from an exterior wall or plumbing - I'm at a loss as to the cause and would go ahead and scrape, fill with j/c as needed, sand and reprime. Sometimes fluke things happen.
#8
03-18-15, 09:32 AM
not that it will change anything but just to complete the story:
I noticed the same issue on the other walls but it wasn't as dramatic....also, if I don't touch these "blisters" and just wait for 24hrs...many of the small ones get "sucked" back into the wall and you can't tell there was an issue. The paint looks perfectly fine.
Only a few big ones would eventlually dry into a spot.
So in the end it was something related to how the primer / paint is absorbed...most of the walls it was normal but in many spots it would be "rejected" by the wall surface..
I noticed the same issue on the other walls but it wasn't as dramatic....also, if I don't touch these "blisters" and just wait for 24hrs...many of the small ones get "sucked" back into the wall and you can't tell there was an issue. The paint looks perfectly fine.
Only a few big ones would eventlually dry into a spot.
So in the end it was something related to how the primer / paint is absorbed...most of the walls it was normal but in many spots it would be "rejected" by the wall surface..
#9
03-18-15, 12:21 PM
That sounds like a problem with the primer. It isn't uncommon for blisters to lay back down during the curing process but those areas will never have as tight a bond with the substrate as it should have.
#10
03-18-15, 12:22 PM
Group Moderator
Personally, I use Zinsser primers and have never had a problem. It has not been the subject of many threads but the primer you used is the same brand as the most often complained about paint brand I have seen so I would consider trying something else.
