Use a degreaser. Test a small area first to ensure that it won't damage the latex paint also.
WD40
No, you either need to really rough up the oil paint with fine sand paper, or put a base coat on before you paint with your Latex paint. If you don't your Latex paint won't adhere.
yes but not the other way around the latex passes moisture
If I was going to repaint this, then I'd remove both the latex and the old oil base with a chemical stripper. Then re-prime it and paint.
There are some water based coatings that will adhere to an oil based surface without using a primer; however, an oil or acrylic-based primer, used as a bridge, will allow you to paint latex over an oil-base paint trouble free.
Yes, you can generally paint high gloss latex over flat latex paint. But you must do all the preparation work in the best tradition of any professional painter. All "flaking" must be removed and the raw wood primed. This will present a "smooth" surface for the new coating. Additionally, everything that is to be painted my be scrupulously clean and free of anything that will restrict the new latex from sticking to the old.
Try a solution of Murphy's Oil Soap and water.
No, you either need to really rough up the oil paint with fine sand paper, or put a base coat on before you paint with your Latex paint. If you don't your Latex paint won't adhere.
Yes it can.
yes but not the other way around the latex passes moisture
Yes, oil based paint is very versatile and can be painted over many painted surfaces, including those previously coated with latex paint, as long as the surface is dull and clean.
If I was going to repaint this, then I'd remove both the latex and the old oil base with a chemical stripper. Then re-prime it and paint.
There are some water based coatings that will adhere to an oil based surface without using a primer; however, an oil or acrylic-based primer, used as a bridge, will allow you to paint latex over an oil-base paint trouble free.
Yes, you can generally paint high gloss latex over flat latex paint. But you must do all the preparation work in the best tradition of any professional painter. All "flaking" must be removed and the raw wood primed. This will present a "smooth" surface for the new coating. Additionally, everything that is to be painted my be scrupulously clean and free of anything that will restrict the new latex from sticking to the old.
You need to prime first, with a primer that adheres to oil paints, and to which latex can adhere. You may even want to sand the oil-painted surface lightly to scuff it for better primer adhesion. Painting latex straight on top of oil paint will result in peeling.
Baby oil will remove oil and latex paint from skin. It will not remove paint from most rigid substrates though.
If you have painted latex over oil based it will peel of very quickly.
Yes, you can use either latex or oil based primer.