The best solution is to clean the walls thoroughly repaint with a 100 acrylic paint and give the area up to 10 days to cure before showering.
How to clean sticky bathroom walls.
Sticky walls in the bathroom are caused by one of two things almost 100 of the time nicotine damage or wallpaper paste residue.
Mineral deposits remain on the wall and build up over time without proper cleaning maintenance.
Bathroom walls sweating sticky stuff.
The moisture in the air must be removed by some mechanical ventilation method.
However if condensation happens often enough and for long enough the damp in the walls provides the perfect breeding.
If you live in an older house that had a lot of different residents move in and out over the years there s no doubt that the place has a lot of character but one mystery that has been stumping me for some time now are these gross brown spots and streaks on my bathroom walls.
There should always be a good fan of course but it is the curing time that is critical.
Now steam on the walls by itself isn t a big problem providing that the walls are covered in water repellent bathroom paint and that you can dry them sharpish by opening the windows or turning up the bathroom radiator.
The best way to avoid these lines requires proper exhaust ventilation in your bathroom.