Recommendation: painted walls

[loz73]

hello all
i am about to tile my bathroom have removed all old tiles from bottom half of wall.
the top half has been painted can i tile directly over this or do i need to remove all the paint? i really hope not !!!!!!!!!!!!!!!

cheers

[Bri]

The paint really needs to come off, (sorry!!!) a coarse sandpaper is what you will need. What size and type of tiles are you tiling your bathroom with?

[loz73]

i am using ceramic tiles 248mm X 331mm this is my first attempt at tiling not as easy as i thought,
do i need to take it back to bare wall or just roughen up?

[Bri]

Just take the paint off back to the plaster skim underneath(try to remove all the paint), if it's painted plasterboard, be careful not to rub the paperface off the board.

[Rich]

As Bri says, the paint needs to come off. Otherwise you will be relying on the bond between the paint and the wall to keep the tiles where they should be. Much better to take it off and do it right

[deankyall]

give the walls a key ,meaning scatch the paint in lines about six inches apart, then prime with a sbr primer,bal bond or similar,use a powdered adhesive, i have tiled many many many times on walls that have been painted ,and never had a single fail.

[aph257]

Defo remove as much paint as pos' but most important is to use a cement based flexible adhesive and not a ready mixed.

[Perfect Tiling]

I found a good tool to remove old paint. Called a Razor Scraper...has an angled head that holds changeable 4 inch blades. If you hold it right it will scrape the paint off down to the plaster or with plasterboard will just take off the thinnest layer of paper...bloody sharp though...ended up in January with my customer taking me to A & E as I sliced right into the knucke of my thumb...luckily it was the other hand so could still do the job when let out. Ouch!!!