Peeling paint over old wallpaper border

[jroy998]

Hi,

I'm just after a little advice please.

A few years ago we stripped a paper border off a wall and painted the whole wall. We thought we had gotten all of the residue off, but after a year or so, the paint started cracking where the border was.

I've had a bit of a look into resolving it and one option seems to be using Zinsser Gardz.

I was planning on scraping any loose paint off the walls, giving it a sand and then putting some Gardz on it before re-painting. My questions are:

• Is this the best way of going about it? Or is there something that would be better suited?

• Would a scrape and sand be enough in terms of prep?

• Will it be sufficient to put the Gardz just on the affected area. Or will this affect the finish if painted over?

• Is it worth putting an overall primer/undercoa over the whole wall before the top coat?

Any advice would be greatly appreciated!

Thanks in advance!

[dewaltdisney]

I think the problem is that residual wallpaper paste has reactivated and delaminated the outer paint surface. Give it a good scotch pad rub with dilute soapy water then go over with Gardz and it should be okay. The scotch pad will knock off any weak surface areas that might not be apparent.

DWD

[jroy998]

Thanks DWD.

I suspected that might be the case.

After washing with the Scotch pad, do you think I can get away with just putting Gardz over the border part and then go straight to putting the top coat over all the wall, or will need some additional prep?

[dewaltdisney]

I would say yes unless there is evidence of other reactive patches. The band where the border was is likely to be the only bit affected. I am sure the Gardz will do the job.

DWD

[jroy998]

Thanks again DWD. Will give it a go.