If you are looking for a faux antique finish you can use stain over latex paint to achieve it.
The latex must be completely clean, grease/oil free and dry. The oil based stain, usually in a dark brown colour, is applied with a brush and then rubbed in with a clean absorbent cloth. In this process most of the stain is removed, but what remains settles in the cracks, crevices and corners and simulate the look of the accumulated dirt of years, hence the "antiquing."
yes but not the other way around the latex passes moisture
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.
If you have painted latex over oil based it will peel of very quickly.
The sap in the wood will bleed through latex. It needs to be primed with an oil based primer such as Kilz.
Yes
Yes it can.
yes but not the other way around the latex passes moisture
Yes, oil based paint is very versatile and can be painted over many painted surfaces, including those previously coated with latex paint, as long as the surface is dull and clean.
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.
If you have painted latex over oil based it will peel of very quickly.
Yes, you can use either latex or oil based primer.
The sap in the wood will bleed through latex. It needs to be primed with an oil based primer such as Kilz.
Yes
Acrylic latex paint is a good product, but sits on the surface and does not penetrate. Raw wood and previously oil-based painted surfaces must be primed first to assure adhesion.
Any paint and decorating store should have little pads (like wet-wipes) that you rub onto the painted surface. Whether or not the paint rubs off will tell you what kind of paint was originally used.
Hot water
No, you either need to really rough up the oil paint with fine sand paper, or put a base coat on before you paint with your Latex paint. If you don't your Latex paint won't adhere.