I wonder if anyone can help me understand and solve this problem I have.
I have stripped out the room, removed the wall plasterboard and fitted kingspan between the studs.
I used polythene behind the plasterboard and skimmed it all.
The room was unheated but ventilated during the works and while decorating.
I even painted onto the bare plaster over the window beading with an oil based primer.
I used lining paper and a b&q emulsion.
There was no indication of staining on the lining paper, but when I applied the emulsion - well you can see the results. No amount of additional coats has an effect.
I tried a bit of oil based undercoat on a small area, and once dry, found the staining was blocked, but the area of undercoat is visibly different.
I have decorated this way so many times before, this has really caught me out, and as well as not being sure of the best way to resolve this now, I am also looking for an understanding of what caused it.
Anyone help please?I wonder if anyone can help me understand and solve this problem I have.
I have stripped out the room, removed the wall plasterboard and fitted kingspan between the studs.
I used polythene behind the plasterboard and skimmed it all.
The room was unheated but ventilated during the works and while decorating.
I even painted onto the bare plaster over the window beading with an oil based primer.
I used lining paper and a b&q emulsion.
There was no indication of staining on the lining paper, but when I applied the emulsion - well you can see the results. No amount of additional coats has an effect.
I tried a bit of oil based undercoat on a small area, and once dry, found the staining was blocked, but the area of undercoat is visibly different.
I have decorated this way so many times before, this has really caught me out, and as well as not being sure of the best way to resolve this now, I am also looking for an understanding of what caused it.
Anyone help please?
[img]http://i298.photobucket.com/albums/mm273/regsmyth/stains2.jpg
I have stripped out the room, removed the wall plasterboard and fitted kingspan between the studs.
I used polythene behind the plasterboard and skimmed it all.
The room was unheated but ventilated during the works and while decorating.
I even painted onto the bare plaster over the window beading with an oil based primer.
I used lining paper and a b&q emulsion.
There was no indication of staining on the lining paper, but when I applied the emulsion - well you can see the results. No amount of additional coats has an effect.
I tried a bit of oil based undercoat on a small area, and once dry, found the staining was blocked, but the area of undercoat is visibly different.
I have decorated this way so many times before, this has really caught me out, and as well as not being sure of the best way to resolve this now, I am also looking for an understanding of what caused it.
Anyone help please?I wonder if anyone can help me understand and solve this problem I have.
I have stripped out the room, removed the wall plasterboard and fitted kingspan between the studs.
I used polythene behind the plasterboard and skimmed it all.
The room was unheated but ventilated during the works and while decorating.
I even painted onto the bare plaster over the window beading with an oil based primer.
I used lining paper and a b&q emulsion.
There was no indication of staining on the lining paper, but when I applied the emulsion - well you can see the results. No amount of additional coats has an effect.
I tried a bit of oil based undercoat on a small area, and once dry, found the staining was blocked, but the area of undercoat is visibly different.
I have decorated this way so many times before, this has really caught me out, and as well as not being sure of the best way to resolve this now, I am also looking for an understanding of what caused it.
Anyone help please?
[img]http://i298.photobucket.com/albums/mm273/regsmyth/stains2.jpg