yes. always!
no
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.
Yes, oil based primer is the best choice for you bathroom. This will hold up much better to years of steam and splashes and prevent mold/mildew. You can paint over the oil primer with latex paint if you wish- make sure it is semi-gloss because this will also hold up better against steam and splashes.
Oil based primer is the best bridge between oil and latex paints. If oil based paints are not available in your area, a high adhesion acrylic primer over a well prepared surface will also work.
A good oil based primer, then an oil based concrete paint.
You can use any kind of enamel paint, but I would recommend an oil based paint, remove all oil, dirt, grease, dust and simply paint. (spray painting will give you a better finish)
Not a good idea, better to use oil based primer.
Yes, you can,
Yes. Clean and degloss the oil based paint, apply an oil based primer, then apply the water based paint.
Yes, you can. Primer will grip to almost any painted surface.
Yes, you can,
You can, but I believe oil based primer would be better.
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.
Yes. Clean and degloss the oil based paint, apply an oil based primer, then apply the water based paint.
Yes, if the primer is oil-based too (alkyd is good too)
yes..paint KILZ on first Or paint any oil based primer first if your topcoat is water based. Kilz is a stain kill primer and even though it dries fast, it tends to be hard to sand. An enamel undercoat works much better as a bridge. If you're using an oil-based top coat, you do not need a primer, just make sure that the surface is clean and gloss free.
Yes
Yes, oil based primer is the best choice for you bathroom. This will hold up much better to years of steam and splashes and prevent mold/mildew. You can paint over the oil primer with latex paint if you wish- make sure it is semi-gloss because this will also hold up better against steam and splashes.