yes it just need to be completely dry, on wood minimum of 10 hrs
of course we are talking about a piece of wood that has been sanded, and given the right treatment
Oil based paint has a very hard surface which makes it difficult for water based paint to stick to properly. It should be primed first. Water based primer is fine. To make certain the water-based primer has good tooth, be sure to lightly sand the oil-based paint and wipe it down with a tack-cloth.
Water and oil do not mix. You will need an excellent quality primer specifically designed for this purpose. Answer: A good rule of thumb is never say no to a primer, but once the latex paint has dried, all the water is evaporated out of it. As long as the surface is clean, you can go over latex paint with oil without using a primer. If you do want to use a primer, use an oil based primer prior to topcoat.
Yes, as long as the polyurethane is oil-based.
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.
It depends on the state you live in. Check with your local paint store. If not, there are water-based alkyds and high adhesive latexes available that can go over oil based paints without a problem.
Yes, however clear polyurethane has a yellow cast that will affect the color of the paint. Most water based clears are crystal clear, very durable and can be used in place of an oil-based clear coating.
I am doing that right now. It says on the can that it can be applied over an oil based stain...but the stain may continue to "amber" under the coating. I decided to go with the polyacrylic because a friend told me that polyurethane yellows over time. I don't know if that is true...but that is what I decided to do. So far, the acrylic is going over and drying over the oil based stain without any problems.
Answer Yes Latex Paint can be used over oil, but the oil paint must have been on your walls not less than 6 months depending on where you live, how humid it is and or how cold your walls are. I say humid because if the weather has been very humid the solvents in the oil paint may not have come out completely and there-fore there will be a reaction between the Oil Paint and the Latex Paint. If on the other hand your walls are cold all of the time the same thing will happen, the solvents in the Oil Paint won't come out and again using latex over Oil Paint won't work. The best method of using Latex Paint over Oil Paint is to wait a year at least. If the Oil Paint was shinny I would recommend that you sand it with fine sandpaper, to dull the shine, and then apply a coat of Latex sealer and then put your finish coats of paint. This method can be reversed and done exactly as written above, but at least a drying time of one year will get you the best results.
Oil and water can't mix. They won't go together. The oil with just sit it the water or on top of the oil the water.
Water is heavier than oil. Oil floats on water.
Polyurethane wood finish oil is oil-based and provides a warm, amber tone to wood, while water-based options are clear and do not alter the wood's color. Oil-based finishes are more durable and provide a richer finish, but take longer to dry and have a stronger odor. Water-based finishes dry faster, have less odor, and are easier to clean up. The choice between the two depends on your project's specific needs - if you prioritize durability and a rich finish, go for oil-based, but if you prefer quicker drying times and easier cleanup, opt for water-based.
All of them, I've bought it in California. It just has to meet the standards of that state.