DIY Doctor

Paint Blistering Problem That Reoccurs Every Year (With Photos)

Postby GeoffH » Tue Jan 07, 2020 5:02 pm

Hi,
My first time here.

I have a problem which recurs every year. Paint blisters on an interior wall. I've painted the exterior part of the wall with silicone brick sealer, scraped off all the blisters, painted the whole wall with Zinsser BIN, filled the damaged areas and repainted, but the blisters re-appear after a week or so.

It's just on the pillar in the photos and not on the pillar on the opposite side. This side does get a lot of rain and the same wall in the flats above have the same problem.

Someone told me it could be efflorescence, so I treated with wine vinegar solution, sealed and repainted but still not solved.

Any thoughts?

Geoff
Attachments
IMG_0744.jpg
Blisters 2
IMG_8246.jpg
Lower Corner of Wall by Skirting
IMG_1544.jpg
Blisters
IMG_0402.jpg
Pillar
GeoffH
Rank: Labourer
Progress to next rank:
25%
Posts: 2
Joined: Tue Jan 07, 2020 4:33 pm


Sponsor

Gorilla Glue heavy duty grab adhesive

Postby chaz57 » Wed Jan 29, 2020 12:25 am

you nailed it in one . efflorescent. better to plaster board over
chaz57
Rank: Apprentice
Progress to next rank:
0%
Posts: 5
Joined: Thu Jan 23, 2020 9:41 pm


Postby thedoctor » Wed Jan 29, 2020 8:36 am

Hi

It does indeed look like efflorescence - We have a project page that covers the causes and also cures for efflorescence that may be of use to you: https://www.diydoctor.org.uk/projects/e ... -cures.htm

Kind Regards
thedoctor
Posts: 2528
Joined: Sat Apr 08, 2006 12:15 pm


Postby GeoffH » Thu Jan 30, 2020 1:33 pm

Hi,

Thanks both for your replies.

I can't plaster board over it, though I can see the advantages. To do so would make the wall too thick for the door frame and window frame.

I have previously painted the exterior wall with silicone brick sealer so I thought this would stop any water coming through the brick. However, I have since discovered the window frame is a bit rotten and may be letting water in the edges of the frame.

Is it necessary to use the special salts neutraliser, or does the wine vinegar solution work as well? I have Zinsser BIN which I can use after that to cover the damaged areas.

Thanks for your help.

Geoff
GeoffH
Rank: Labourer
Progress to next rank:
25%
Posts: 2
Joined: Tue Jan 07, 2020 4:33 pm



Display posts from previous
Sort by
Order by



  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!


 
  • Related Topics