What do you mean by moistening powder, moistening oil powder and moistening water powder?

The so-called moistening powder is actually a technological process in wood painting engineering. It is an operation process that white powder is used as the main raw material, mixed with other oils to make paste, and then wiped and filled on the wood surface. Moisturizing powder can be divided into oil powder and gouache according to the different types of other oils mixed with people. Oil powder is made of white powder and pigment, and then mixed with cooked tung oil and rosin water to form a paste. Dip cotton balls or hemp balls in oil powder, wipe the wood surface many times back and forth, and use it to smooth holes. This process is called oil powder. Gouache is made of white powder and pigment, plus water gel. The operation is the same as that of lubricating oil powder. This operation process is called moistening powder.