What is the cause of the yellowing of the diatom mud at the joints of the ceiling? How to deal with

It's very simple, the color inside the diatom mud is iron oxide, like aluminum alloy sliding doors, aluminum alloy gusset plates will be corroded by iron oxide, do a good job of protection!

If it can be repaired, use a small blade to open the crack a little bigger, and then paste anti-crack paper and then repair the putty and paint.

First of all, you can check whether the water pipe of your air conditioner is placed, and there is a problem with the position of the outlet pipe and the horizontal angle of the water outlet. After a long time, the location of the installation pipe will leak. >>>More

Not parallel, the strips underneath are not firm.

The figure seven is like the Arabic numeral 7, which has a horizontal and vertical style of connecting the pen into one. The figure-of-seven ceiling is made of a whole plate at the two corners of the corner of the ceiling, which can ensure the stability of the ceiling structure to the greatest extent, and the decorative materials on its surface are not easy to crack, bulge and fall off. As shown below: >>>More

It should be the cracking of the gypsum board joint, there are several reasons, 1, the bottom foundation is not firm when the woodworking ceiling is suspended, resulting in the gypsum board falling and cracking. 2.When the carpenter puts the plasterboard on it, the joints of the gypsum board are not placed. >>>More