A few days after the gypsum board ceiling was sprayed with latex paint, a large area was yellowed, w

The abstract is caused by the lack of priming treatment or the poor quality of the priming paint, that is, yellowing. There is no approval of putty according to the construction process, the first putty is not finished when the ash is not finished, and the color will quickly penetrate outward, as well as in the primer and topcoat, the time is too short, the paint is not finished, this situation will occur, because the paint used is water-based paint, and two or three brushes will be carried out without drying thoroughly, and the color will penetrate outward with the moisture, so this will happen.

Remedy: 1. If you want to solve it completely, you need to remove the original putty again and do it again. If you are afraid of trouble, reseal the primer on the existing latex paint, and then scrape the putty;

2. If there is a problem at the grassroots level, do not brush the anti-rust paint at the position of the iron nail.

A few days after the gypsum board ceiling was sprayed with latex paint, a large area was yellowed, what is the reason? Seek the truth!!

It is caused by the lack of priming treatment or the poor quality of the priming paint, that is, yellowing. There is no approval of putty according to the construction process, the first putty is not finished when the ash is not finished, and the color will quickly penetrate outward, as well as in the primer and topcoat, the time is too short, the paint is not finished, this situation will occur, because the paint used is water-based paint, and two or three brushes will be carried out without drying thoroughly, and the color will penetrate outward with the moisture, so this will happen. Remedy:

1. If you want to solve it completely, you need to remove the original putty again and do it again. If you are afraid of trouble, reseal the primer on the existing latex paint, and then scrape the putty; 2. If there is a problem at the grassroots level, do not brush the anti-rust paint at the position of the iron nail.

The powder is not yellow, and the latex paint will turn yellow.

The gypsum board turns yellow after painting because there is no priming treatment or the priming is yellowish, and the putty is not approved according to the construction process. There is also a situation in brushing primer and topcoat, the time is too short, and the paint is not finished, because the paint used is water-based paint, and two or three brushes are carried out before it is completely dried, and the color will penetrate outward with the moisture, so this will happen. Remedy: If you want to solve it completely, you need to remove the original putty again and do it again.

If you are afraid of trouble, reseal the primer on the existing latex paint, and then scrape the putty;

The data is almost the same, and it is more troublesome to rework.

Gypsum board ceilings need to be painted with latex paint. After the gypsum board ceiling is suspended, it is actually the same as the blank roof.

Among them, there are some nail holes and gaps, so the first thing to do is to do gypsum board base treatment: use a bandage to stabilize the gaps, apply anti-rust paint to the nail holes, and then scrape putty according to the top of the blank, and finally apply latex paint. These are the necessary processes.

And five-centimeter board, MDF and other ceilings are treated in this way. The surface of the aluminum gusset has been treated by oxidation and oil resistance, and the material does not belong to the same kind at all, so there is no need to apply latex paint.