How to deal with the joints of gypsum board?

First of all, when laying gypsum board, we should pay attention to control the gap between gypsum boards at 3-5 mm, so that it is more convenient to deal with the gap in the later stage. You might think, wouldn't it be better to leave as few gaps as possible? In fact, no matter how small the gap is, there is always a gap, which must be dealt with later. If the gap is too small, it will increase the processing difficulty. Moreover, gypsum board will expand with heat and contract with cold, so you should leave some room for it to expand with heat and contract with cold.

Don't worry if the reserved seam is really too small. Just use a utility knife to make a V-shaped groove at the joint of two gypsum boards.

After that, we will fill the gap with putty powder first, remember to compact it a little bit to ensure that the gap is filled and there is no empty space. The height should not exceed the plasterboard, and the surface should be scraped flat, and there should be no protrusions.

Then paste masking paper on the gap with white latex. In addition to masking paper, you can also use cloth strips (polyester fabric is the best), gauze or special caulking tape. It depends on your own choice. In fact, it is handled well, and there is not much difference between the two.

When the sticky textured paper is dry, continue to apply a layer of white latex on the surface of the textured paper to make it stronger. Then hang putty, and try to ensure that the height of joint filling position is not higher than gypsum board. Finally, remember to polish the surface again to ensure smoothness. If necessary, you can also brush a layer of latex paint.

This is the normal joint treatment of two gypsum boards. Let's talk about the joint treatment between gypsum board and wall.

At the junction of the wall and gypsum board, we need to open a groove of about 50px on the wall. Then the gypsum board is directly stuck in the groove when it is installed. After the installation is completed, smooth the gap with putty in the same way as above, then stick the seam with gauze, and then scrape the putty, and the problem of the gap can be solved.

The above is about the joint treatment of gypsum board, I hope it will help you.