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
You generally don't put primer of any kind over paint. If you have bare wood on the outside of a house you can paint the bare wood with oil base primer and get a little on the old latex paint.
You can use a latex base primer with oil base as top coat.
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.
that is fine as long as paint is dry before coating
Not directly. You will need to use a primer made to adhere to oil and will accept a latex topcoat.
It's primer made with a latex or acrylic base. You can use any kind of paint over this.
You can use either a water or oil-based paint over a latex primer.
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.
Either oil or latex primer can be used over interior latex paint.
that is fine as long as paint is dry before coating
Latex.
Not directly. You will need to use a primer made to adhere to oil and will accept a latex topcoat.
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.
You have to use a good primer first.
painting and straining
It's primer made with a latex or acrylic base. You can use any kind of paint over this.
You didn't mention whether you were using latex or oil based primer and paint, but generally the point of using primer is so that you can paint over it with any form of wall paint. Just read the label on your primer can to make sure it is compatible. On the other hand, if you wanted to paint the primer over the satin gloss, you need to sand the surface lightly to remove the sheen of the paint and provide a suitable surface for the primer to adhere properly.
You can use either a water or oil-based paint over a latex primer.
As long as you sand & prime first, in most cases just latex primer applied before painting with the latex paint. If the old paint is really old, be careful about sanding, it may contain lead.