plastering over painted finish

[topbanana]

i have rippled, artex like, plaster situation above dado and flat under dado.
its all painted.
i want to take dado off and plaster from top to bottom.
could some one please give me advice on procedure.
i believe 5:1 waterva allowed to dry then 1:3 and plaster while tacky.
however my plasterer has 5:1 the whole lot and said only required to 1:3 the flat portion before multi finish.
please, is this the correct procedure.?

 

[legs-akimbo]

Either or.... Every plasterer has their own idea of which ratio is best, if your spread knows his onions then you should let him at it and all will be well with the world!!

 

[topbanana]

sorry probably posted too much info.
not arguing with ratios, just whether the new plaster will bond to the painted rippled plaster without the 2nd application of pva.

 

[topbanana]

forgot to say thanks for speedy reply
thanks

 

[legs-akimbo]

It will indeed Topbanana...There is no real hard fast rules to pva use ,as I say what your plasterer may do another may vary to...But invariably the plaster skim will take ok.

 

[topbanana]

ok. cheers for your advice.