yes as long as the paint is dry.
Yes ,you can use polyacrylic over latex
no
You can definitely use latex paint over epoxy. In fact, it is recommended to use latex over epoxy by the paint manufacturers, rather than using epoxy over epoxy. The latex adheres better and if you then want to use epoxy next time you paint, you have a nice coat of latex between the layers. If you use epoxy over epoxy, often the paint will just peel off in layers once some time passes (and sometimes right away).
yes. However, you cannot use an oil base paint over a latex primer. If you change your mind on the paint, you must strip the paint before you use an oil based paint on the primer.
You can not put oil paint over latex paint. Oil is a rigid coating and latex is a flexible coating. When you put a rigid coating over something that is flexible the rigid coating cracks off.
Latex.
yes
You can use either a water or oil-based paint over a latex primer.
Not directly. You will need to use a primer made to adhere to oil and will accept a latex topcoat.
You can always paint latex ( water based )over an oil based paint as the latex just dries on the surface. However don't paint an oil based over a latex paint. Oil based paints need to absorb into the wood or other surfaces or it will just dry and flake off. For more information on the differences and when or not to use a latex or oil paint please see the following article. . http://www.ehow.com/how_4713170_between-latex-oil-base-paint.html
Not if the melamine paint is oil (alkyd) based.
It's primer made with a latex or acrylic base. You can use any kind of paint over this.