The problem of light plaster gypsum powder peeling may be caused by the following reasons, and the corresponding solutions are as follows :

  1. Gypsum quality issues    

  Reason : Poor quality of gypsum powder and low content of hemihydrate gypsum lead to powder falling off.

  Solution : Select gypsum powder of qualified quality to ensure that its adhesion and strength meet the standards.

2.  Improper water-cement ratio   

  Reason : The water-cement ratio is not appropriate. Too much or too little water will affect the bonding properties of gypsum.

  Solution : Strictly follow the product instructions to mix the water-cement ratio to ensure that the gypsum slurry is uniform and has moderate adhesion.

  3. Improper handling of the grassroots    

  Reason : The base layer has a high water absorption rate, which causes the lightweight gypsum to lose water too quickly .

  Solution : Clean the base thoroughly before construction to ensure that there is no oil, dust, etc. If necessary, roughen it to increase adhesion.

3.  Poor construction environment   

  Cause : The temperature is too high or the air is dry and the humidity is low , which affects the curing of gypsum.

  Solution : Control the construction environment, the temperature should be above 30 ℃, the air should be dry and the humidity should be low , and avoid construction under extreme conditions.

 5. Gypsum product operation time is too long   

  Reason : The operation time is too long and the lightweight gypsum has not completely hardened after being applied to the wall .

  Solution : Under the premise of meeting the construction requirements, try to shorten the initial setting time and allow the lightweight gypsum to harden as soon as possible after being applied to the wall.