Tiles on greasy plaster

[TonyV]

Hi All
Going to tile and redec kitchen this week. Potential problem is that behind cooker plaster is greasy from cooking fat / splashes.
will sugar soaping thorouly be good enough to give adhesive a chance to "stick"

Thanks in advance of advice

Tony

 

[masona]

Depends how thick the grease is, might be best to scrape most of it with a blade then use turps or white spirit to remove any grease left, sugar soap, clean up then sand it lighty with a orbit sander.

 

[TonyV]

thanks Masona - grease is not at scraping stage - lol. so will proceed as suggested