Painting melamine can be a little challenging but it is possible. You will need to sand the table lightly using a fine grit sandpaper in order for the paint to adhere, then you will need to prime it either using an oil based primer or a primer made especially for melamine. Once it is primed and dry, you can paint it using melamine paint.
Not if the melamine paint is oil (alkyd) based.
No, it won't stick.
Semigloss on walls and melamine for cabinets.
Yes, it works well with that.
There is paint specifically made for painting Melamine boards, cabinets etc. I have used this and am very pleased with the results. It can be obtained at any major DIY store eg B & Q.
Melamine paint is very expensive as you know and they do come in colors. You don't have to use Melamine and oil based paint is just as good (although a little smelly.) Melamine smells terrible anyway. Oil based should be used (be sure if there is any paint in your bathroom already that it's oil based and not latex. If latex, then you have some sanding to do. You sand to rough up the surface. It's also good to put a white primer on the walls after sanding so you oil base will stay on properly. Oil base and Melamine are used because of the dampness of the bathroom and usually this is also used in kitchens. My husband only paints the tub surround with Melamine and the rest of the white woodwork with oil based paint. Marcy
Enamel or Melamine .
You can remove melamine paint from a water proof jacket by applying mineral spirits to a rag and then scrubbing the jacket vigorously. If required, you can also use a scrubbing brush to remove dried in paint. Wash the jacket as per the instructions on the care label.
If it's yellowed paint, you will never restore it to white by cleaning. It's simpler and cheaper to repaint with melamine paint.