Priming a Painted wall?

[BigDan]

Hi guys

This has probably already been covered but could you recommend a primer? to go directly onto a painted wall prior to tiling? can i use a basic builders one? and what mix would i need?

the room is a en suite with a shower cubicle in it. The walls have several layers of paint on them. I was oblivious to the need for primer! - but my mate mentioned that i 'would need to PVA the walls first' so any help would be most welcome! Many thanks Dan

 

[Ian]

Afternoon Dan, you'll need to get that paint off mate. A paint steamer and a scraper is the best method. When you are back down to plaster, prime the walls with an acrylic primer, PVA is not suitable for priming prior to tiling. As an alternative, if the walls are plasterboard you could remove them and replace or overboard them, either way don't be tempted to tile over the paint as that is all that will be holding your tiles to the wall.

 

[peteablard]

As above, don't be tempted to tile over the paint and regardless of what your mate says don't use PVA, it need to be an acrylic primer or you'll have problems

 

[Polishtradesman]

Same as above. Never tile on paint.

 

[BigDan]

Thanks Guys i will strip back the paint and prime! Can you recommend a primer to use with maipei adhesive? will a general acrylic primer do the job?

Many thanks

 

[Gazzer]

Mapei Primer G

 

[Anthony Azz]

Can I use primer G on painted walls to surfuce again with gypsum powder.