2' Brush latex evenly on board, not too thick. (It is best to use paste, that is, there is mud on the face, and it will not destroy the painting heart when it needs to be taken down in the future. )
3. Find someone to help me lift the two corners at one end of the painting. The other end touches the board first, and then slowly brush it to the other end with a brush. Be careful to be slow. It is best to prepare two brushes, one long and the other ordinary. Long brush has a wide area and is often used as an aid. You can also brush and spray once.
4. Stick it upright and dry it in the shade! Keep out of direct sunlight, or it will blister.
Good luck!