Manufacturing process of gypsum board inspection opening！

The manufacturing process of gypsum board access port mainly includes the following steps:

1. Determine the location of the manhole: First, it is necessary to determine the specific location of the manhole for subsequent operations.
2. Sawing a small hole: according to the determined size of the access hole, use a tool to saw a small hole, which is a movable opening for future maintenance or equipment opening.
3. Blocking the manhole: After the inspection is completed, the original small hole needs to be blocked again, and a bandage can be used to stick the incision to ensure the tightness.
4.  Coating and repair: After plugging, it is necessary to coat the manhole with paint with the same color as the ceiling to ensure the overall aesthetics and coordination.
5. Gypsum board installation: After the manhole is treated, gypsum board installation can be continued. This includes installing a keel (which can be a wooden keel or a light steel keel), and then fixing the gypsum board to the keel. There should be a certain gap between gypsum boards, usually 3 ~ 5 mm.
6. Joint treatment of gypsum board: After gypsum board is installed, the joint needs to be filled. You can use a mixture of gypsum powder and glue to fill the joint, or buy a special gypsum board joint filler. When caulking, the putty should be kept flat, and after the putty is dry, it should be applied to the gap with white latex, and a bandage should be attached at the same time.
7. Putty leveling and polishing: After the putty is caulked, it needs to be leveled twice, and then polished with sand skin to make the surface smooth.
8. Brushing of latex paint: The last step is to brush latex paint after all processes are completed. This step can make the whole space more beautiful and keep the same color as the previous paint.