tiling over paint (yet again)

[goatboy]

oh. can i tile onto browning?? :S

 

[White Room]

Not browning it's to soft as an undercoat, a finish would be needed for you to tile onto

 

[goatboy]

this is what i meant when i said people over here try to cut corners... this person assured me that I could tile directly onto it... so im guessing it would take more than 1 day to put a browning coat and then another finishing coat over it... so could he do a cement render on the walls for me to tile over then?

 

[White Room]

Could ask, it would be better though with sand/cement

 

[goatboy]

better so plaster would be the best option then... but would it take more than one day for the browning coat to dry and then the finishing coat put over it? and what adhesive should i use on a cement render?

 

[doug boardley]

deffo not tiling onto browning:yikes:

 

[White Room]

better so plaster would be the best option then... but would it take more than one day for the browning coat to dry and then the finishing coat put over it?

The finsh should be put on the same day the undercoat is applied


what adhesive should i use on a cement render?

Render is a different material to plaster (gypsum)

I would use a powdered adhesive but prime the gypsum plaster first with mapei g or bal apd acrylic primer

 

[goatboy]

and why is PVA bad when acrylic primer is ok? that bit confuses me because acrylic primer has the same effect when it is dampened to PVA

 

[goatboy]

p.s. sorry for all the dumb *** questions but i want to get this right in my head before i talk to the guy doing the 'plastering' for want of a better word

 

[White Room]

Read this http://www.tilersforums.com/tile-adhesive-grout-prep-forum/2511-p-v-versus-primers.html