03 # plastering gypsum # construction precautions 1.
The thickness of each construction shall not be greater than 15mm, and the total thickness shall be greater than 15mm, and leveling shall be carried out in batches; When the first batch is scraped, the thin batch can be carried out on the base layer first, and then the material can be loaded continuously, which is conducive to air discharge and improve the adhesion with the base layer; If the surface is partially whitened and de-powdered after batch scraping, a brush can be dipped in water to replenish water on the whitened surface.
4.
After the product is unsealed, it is recommended to use it all at once.
As the saying goes, “three parts of material and seven parts of labor”, no matter how good the material is, if there is no standard construction process, the material will not play its original product characteristics, and will also cause problems such as powder loss and cracking.
Please use clean buckets and tools for mixing.
The prepared slurry shall be scraped to the wall surface in batches with a gray plate, and then scraped with an aluminum alloy scraper.
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So, what are the steps and what should be paid attention to when using gypsum? 01 # plastering gypsum # construction introduction construction process: base course cleaning and repair → local mesh reinforcement treatment → setting out and mortar cake screeding → interface treatment → plastering gypsum leveling → maintenance is an indispensable step.
6.
The water volume should not drop or damage the mortar layer.
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02 # plastering gypsum # key points of construction: the base treatment wall must be clean, free of dust, oil stain, water seepage and other dirt, and the wall must be flat, solid and free of hollowing, and the hollow and concave parts should be filled and leveled with this product; The new wall can only be constructed after the cement mortar plastering layer is fully hardened (plastering for about 7 days); Before construction, it is recommended to use the interface agent to reinforce the base course, smooth the base course or ceiling, and roughen it first.
Do not mix the dried slurry with water before reuse.
In case of high temperature weather in summer, before leveling the brick wall, concrete wall and ceiling, spray 1-2 times of water for wetting, and the construction can be carried out without water droplets flowing on the surface.
The next process should be carried out after it is completely dry.
This product can be used after adding water according to the reference proportion.
In case of construction in windy weather, it is recommended to close the doors and windows to avoid the rapid loss of water on the surface due to the rapid air flow affecting the strength.
Unused products should be sealed and stored as soon as possible to avoid being affected by moisture.
The change of temperature and humidity has an impact on the available time and drying speed.
This product is applicable to the bottom leveling treatment of indoor wall in non-humid areas.
The construction temperature is recommended to be 5-35 ℃ and the relative humidity of the air is less than 85%.
3.
It is recommended to stir the next bucket after one bucket is used up.
5.
The amount of materials to be mixed each time should be the amount required for leveling the area, not too much, and should be mixed and used frequently; The mixed slurry shall be used up before the initial setting, and the slurry that has been initially set shall not be mixed with water again.
Before the slurry is prepared and mixed, clean the mixing barrel wall with a small trowel, then pour clean water into the mixing barrel, slowly add gypsum powder while mixing, use an electric mixer to mix until it is uniform and free of lumps, leave it standing for about 2 minutes, and then mix for 30 seconds before use.
It is forbidden to mix with other gypsum powder! 2.
The mixed materials should be used within 1 hour.
