Plastering gypsum, a new model of green building materials, is specially designed for plastering the interior walls of modern buildings. Its unique formula combines industrial by-product gypsum, selected aggregates, high-efficiency filling substances and special additives, which together create its excellent application performance on a variety of building interior walls, especially concrete and aerated brick walls. The material not only simplifies the construction process, but also demonstrates extraordinary adaptability and effectiveness when applied directly to the aforementioned walls, leading a new trend in interior plastering.
01  Construction preparation:
handheld electric mixing gun, bucket, plaster support board, plane plane, corner brush, wedge-shaped spatula, handcart, roller, etc.
02  Apply primer

When plastering concrete walls, you will inevitably face the problem of bubble formation, which is mainly due to factors such as the surface characteristics of the concrete, the air permeability of the plastering material, and air trapping during construction. These bubbles not only affect the overall appearance of the wall, but may also become a hidden danger of hollowing and peeling in the future. In order to effectively prevent hollowing and bubbles caused by the contraction of concrete walls, a special interface agent for plastering should be applied after the concrete wall is cleaned.
03  Hanging the mesh
It is advisable to use plastering plaster to paste the mesh cloth at the junction of walls of different materials. Do not use the point adhesion method to paste the mesh cloth, as this will affect the crack resistance of the mesh cloth and will also cause artificial hollowing due to insufficient material filling.
04  Rushing
It is best to use a relatively thick, smooth, square aluminium alloy tube for rushing. The length should be about 3 cm shorter than the floor height. After the rushing material has set on the wall, gently knock the rushing strip down at this time. Do not stick it on and remove it immediately.
05  Plastering
It is best to work from the bottom up within the same spacer, and finish the same spacer before moving on to the next one. After the material is applied to both sides of the spacer, use a trowel to plaster against the inside corner of the spacer, pressing the material into the inside corner of the spacer to ensure that the material and the spacer are fully bonded. Otherwise, the sides of the spacer are prone to appear hollow or have gaps due to insufficient material being applied. Before plastering the skirting boards, flush the area with water to remove dust, to prevent hollows caused by floating dust.
06  Smoothing

Once the plaster has reached the height of the reinforcement, it can be smoothed. Do not wait until the plaster starts to set, as this will result in a rough surface. Smooth the plaster from the bottom up along the reinforcement, using the smoothed material to fill in any depressions. Try to do this in one or two smoothing passes.
07  Jointing
When plastering the first side wall of a free-standing male corner, an aluminium ruler needs to be affixed to the opposite side, flush with the punching line surface. After applying the plaster and smoothing it, the jointing will be even. After the plaster has completely hardened, the ruler can be gently removed. When plastering the other side of the independent male corner, stick the ruler to the plastered layer of the side wall that has been completed and hardened, apply the slurry, smooth it out, and then wait until the plastering plaster has completely hardened before gently removing the ruler, thus completing the construction of the entire independent male corner.
08  Finishing
Plastering plaster will produce a small amount of bubbles on the concrete wall base. The thinner the plastering thickness, the more small bubbles there will be. After the plastering surface gains some strength, use a spatula to dig out the bubbles and repair them in time with plastering mortar. After the plastering mortar gains strength, there will be no colour difference.

Construction precautions:
1. The tools and containers for mixing the lightweight plastering plaster and the tools for plastering operations must be clean and free of impurities before use. They must be cleaned after each use, otherwise it will affect the operating time of the lightweight plastering plaster later.
2. Light plastering gypsum plastering is generally only suitable for indoor projects and must not be used on outdoor walls; it should not be used in parts of indoor projects that are exposed to moisture for long periods of time (e.g., bathrooms, kitchens, basement damp areas, etc.).
3. Ensure that the water is clean, add a small amount of plaster according to the construction progress, and use up the mixed plaster within 50 minutes. Never thicken the plaster and then add water.
4. After each application to the wall, the material should be applied within 1 hour (from the addition of water to the final curing), and repeated adjustments over a long period of time are strictly prohibited to avoid peeling and affecting the surface appearance.
5. Before construction, the wall should be watered and cleaned, and the time for the wall to develop water should be grasped. It is appropriate for the wall to be moistened without visible water before construction. The amount of water developed should be controlled according to the drying and water absorption of the wall. Walls with high drying and water absorption rates should be made wet and saturated to reduce the probability of bubbling.
6. The plastering of the shear walls should ensure that the reinforcement is flush and straight, and the number of times it is measured against a ruler should be kept to a minimum to avoid the concentration of air bubbles and the resulting hollowing.
7. The construction operation should be carefully monitored and compacted in layers. Each layer of plastering should not be too thick, and the skin on the concrete surface should be treated before plastering.
8. The plastering layer should be protected from exposure to the sun, water and impact during the setting and hardening period.