according to the paint seller that I met weeks ago, he said using emulsion paint will have problems in time. The very common problem is dropping down of paint dusk (not visible by naked eye, but can feel it when u walking around) . You will feel your floor dusty even though you sweep the floor daily.

For me this situation is not comfy, and the biggest problem is it will be harmful to our health since we are breathing in the tiny dusk daily. Advisable to use premium paint for the ceiling, RM220 for 18L nippon vinilex. Cheers.

The sealer I bought only cost RM110 for 20L.

For sure he want me to buy premium because he can earn more...
You are right that developer will 99% use emulsion paint when deliver the house to you, they want earn more what....
The fact that the problem do exist, because the condo that I'm renting now and previously is all like that. The seller just give us more options, I don't mind paying more to get better result and better living.