Unless you used a primer in between it will look like it's slipping off.
can i use water base paint over oil base paint
Yes. Clean and degloss the oil based paint, apply an oil based primer, then apply the water based paint.
Yes, you can,
No, you can't .
Only if the 'flat paint' is water based too.
xylene will work and so will soy bean oil. use hot hot hot water
Any paint that has the word 'acrylic' in the title is usually water based.
Water based paint is often termed "latex based" and it is used for a vast amount of applications.
There are some water based coatings that will adhere to an oil based surface without using a primer; however, an oil or acrylic-based primer, used as a bridge, will allow you to paint latex over an oil-base paint trouble free.
no it will peel. must use water base with water base & oil base with oil base.and use an undercoat to hide stains.
That usually works quite well.
Yes, you can, this is an excellent base for sticking to.