Would like to repaint old cabinets that have a "hard plastic veneer-like surface. Will paint adhere to them?
It sounds like you have a plastic laminate surface like Formica or something. You'll need to really do a great job of sanding them. Scratch them up uniformly and you may be able to get a good finish. Dings will probably show up a little more often than if you had a wood base to work with because the plastic is hard. I assume this is an economical thing that you're trying to accomplish until you can do something a little better but will cost more. This will buy you some time.