Can I repaint furniture that has already been painted?

You can wipe the cabinet clean first, and then sand it a little with fine sandpaper to refresh the paint. Remember that if there was a drum in the past, be sure to remove it.

Look at this problem from another angle: if you don't know if you can do this, it proves that your paint knowledge and technical level is not high, and it is foreseeable that even if you really like the color you choose, the effect after you refresh the paint may not be good - because the color cannot express its beauty alone, but is attached to the tangible furniture as a harmonious whole. Combined with the paint technology, the result is likely to be an ugly, ugly, rough and shoddy look at the paint – not at all what you had envisioned it to be!

At that time, it will be difficult to change back to the original state!

I know it's hard for you to like this answer, but it's just kind advice from a friend you don't know, hehe

Use fine sandpaper to sand it first, because after you use it for a while, a layer of oil and other contaminants adheres to the surface of the furniture, and direct painting will affect the even adhesion of the paint.

It should be OK It's already been said upstairs.

Look at the chemistry of lacquer, what was used before, what is used now, or will it be reflected.

OK. But you have to rub the rubbing that you have brushed before. Otherwise, it will have a bad effect on the new brush1