It won't adhere properly if you do. You'll find it peeling of almost as soon as it dries.
paint jobs
They can be the same cost. Depends on brand
An enamel or alkyd.
There are different kinds of satin paint - you'd have to know if it was latex, oil, enamel, alkyd etc.
Enamel paint is oil or alkyd. Alkyd paint is probably the most well known type of oil paint available on the market. The word alkyd actually refers to the synthetic resin used as a binder in the paint. This would be the oil in the paint, most commonly vegetable oil. Alkyd paints also come in a wide variety of finishes making it ideal for multiple different projects. Alkyd paint is very resistant to normal wear and tear. Thus, this type of paint is used commonly in "high traffic" type areas. This would include doors and trim within a home and also items that would need painting in the kitchen and bathroom such as cabinets. The alkyd paint will hold up to all the abuses that may come its way. Acrylic enamel is a water based full gloss usually for interior surfaces only. The gloss is nearly as high as gloss enamel but it is not quite as durable. One advantage is that if you are using white it does not discolor over time as much as alkyd based enamel. Also from a professional point i have never found the finish to be as good as enamel with less than three coats.
You can purchase a semi-gloss enamel in both water and oil-based varieties.
What they call "oil base paint" is really called "alkyd base paint." So yes, you can do that.
Alkyd Enamel is really old school primer. I personally would sand it with 400 wet/dry and put a coat or two of an epoxy primer over it then you can put just about any type of paint on it. If you don't want to do that, probably your best best would be n Enamel top coat , You can still get Automotive Enamels but they will be expensive because the EPA is really cracking down on the solvent based finishes. Color selection may also be limited but they are out there. And even if you use an enamel , you should clear coat it with a Urethane Clear. IT helps protect the base coat from fading and gives a great gloss when buffed. I have painted a lot of cars with Enamels and they go on fairly heavy so watch out.
Yes.
Enamel is a word used to describe a finish, not the formulation of a paint. It simply means a hard reflective surface. Many people mistakenly use the word enamel when referring to oil based paints. So. if you are asking if you can paint latex or acrylic paint over a latex or acrylic enamel the answer is yes, however, I strongly recommend you sand the old paint first to give the top coat "tooth". If you are asking about painting latex or acrylic over an oil based paint the answer is still yes, however you must first sand the old paint and apply a good quality primer to it. Check with a reputable paint retailer for the best brand in your area.
oil base primer ( kilz or zinzer), ask the paint guy at the local ace hardware, sheerwin Williams or lowes . let it dry good
I wouldn't recommend it. Some of the chemicals in the alkyd will dissolve the latex and the alkyd won't "stick". It's best to remove the latex using laquer thinner or xylene first.