Hi All,
Hoping someone can offer me some advice on how to fix this issue:
We recently stripped the wallpaper off our walls which exposed the bare plaster underneath. I did the following steps:
1) remove all wall paper
2) give a light sanding to the walls
3) patch filled and sanded smooth
4) washed the walls with sugar soap (Twice)
5) washed the walls with clean water
6) painted the wall with zinsser Gardz
7) painted with Dulux Matt paint (about 2\3 coats) after each coat has dried.
However, after all that, I am noticing hairline cracks coming through in the paint as shown in the below link:
http://tinyurl.com/yaz9hsrz
I have read a couple of suggestions that it could be 1) paint was painted too thick, this I did not do. 2) the walls were not cleaned properly, I ensure i cleaned the walls very well.
Does anyone know what caused this and how i can fix it without sanding back the walls? This is not an issue all over the wall and on all walls, but the one wall is rather bad.
Any help would be greatly appreciated.
Thank you
Are you a tradesperson and able to answer this question?
Hi. The link to the photo doesn't seem to work for me but I would like to advise you if I can. Appears you covered all bases in your preparation here, most immportantly the sugar soaping of the walls to remove the old wallpaper paste residue from the walls. (An often neglected step that would create this issue)
The only thing I can think of that may have caused this is the use of zinnser Gardz. It is an excellent product and I have used it as a 'size' for re-wallpapering and to seal damaged dry wall.
The only thing is that it will completely seal off the surface and this can extend the drying period of paint applied thereafter.
Dulux paint I am told contains a lot of bulking agents as customers feel the thicker the paint the better it is.
I find it difficult to work correctly with i.e to apply in the correct thickness. I usually dilute it (when I have no choice but to use it) to achieve this.
In summary, the drying time is extended too long by these factors then the fissures you mentioned can result.
Try painting a small area with a paint designed for new plaster etc (dries quickly) and see if it 'heals' into the fissures if successful repaint with your paint but thin it down. Or apply a very thin layer of good quality filler (Toupret) with a caulking tool. This is known as surfacing.
Or alternatively a remedy that will be very successful would be to line the problem wall with lining paper, when dry paint but again thin the paint or there will be a tendency to see roller and brush marks in the finish.
Hope this helps
I can see the pic & yes its looks like crazy paving, so as previous reply might be best to hang lining paper, but with all those cracks 'Size' the walls first with watered down paste.
Best of luck,
Paul, MyDecorator, Leamington Spa
