gypsum plaster

Hi I'm not a plasterer. I've had my flat replastered and I really like the pink mottled plaster look, reminds me of holidays in Italy, and I want to leave it as it is. But I'm aware that it marks and any grease, even from hands, will blemish it. So it needs sealing, ideally so it can be washed...

Hi, Ok guys Ive got really conflicting information and its driving me crazy. I'd appreciate your help please. Small side note: I've got hardly any experience with plastering and what very small amount I do have is using gypsum plaster. So I had to hack the existing plaster of my victorian...